rotary mud pump drilling factory

It’s time for piston mud pumps to enter the 21st century. Centerline Mud Pumps utilize common, industry-proven, and easily obtained fluid end parts. Designed to give you better flow capacity, pressure, size and weight advantages, that you won’t find anywhere else. Centerline Mud Pumps are built to exceed the most demanding specifications in the industry. These pumps are built to last.

Centerline Manufacturing is pleased to introduce their line of hydraulic drive mud pumps. Since 1983, Centerline Manufacturing has been involved in the design, manufacture, and production of drilling equipment, support equipment, and tooling for the water well industry. Our line of mud pumps include several new milestone technologies not found anywhere else in the industry.

Provides 150-180* GPM (Gallon Per Minute) of standard mud flow at 350 psi continuous. The 180 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.

Provides 300-360* GPM (Gallon Per Minute) of standard mud flow at 350 psi Continuous.  The 360 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.

Provides 450-540* GPM (Gallon per Minute) of standard mud flow ar 350 psi Continuous.  The 540 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.

The 42-year-old, family-owned American Drilling Services in Florida, relied on homemade drill rigs to complete primarily 2- to 4-inch residential water wells. With demand increasing, they began looking for newer technology in order to complete more mud pump well drilling.

“Technology is always changing. We used to drill galvanized steel with cable drilling. Now we’re exclusively rotary drilling,” said William Diaz, driller, who has been with the company for seven years. “The technology gets better, and things get easier.”

“We used to do one well per day, occasionally two. The DM250 has helped us keep up with the workload by being able to drill quicker,” Diaz said. “The pulldown power of the top head is significantly stronger than our previous rigs. With the mud pump, we can clean out the hole a lot faster, which means less waiting around.”

A fast and efficient method of drilling, mud rotary drilling is effective in a wide range of geological formations, including sand, silt, clay, gravel, cobbles, and boulders. Not hindered by the presence of groundwater, a mud drill is also used for coring bedrock.

With the necessary torque for powerful rotation, new and seasoned operators find the Geoprobe® line of geotechnical drilling rigs and combination drilling rigs make for an effective mud drill thanks to:

With rig service shops in Pennsylvania, Kansas, and Florida, you’ll have industry-leading drill rig service support nearby for your routine maintenance or more in-depth rig remounting and refurbishment work - keeping your mud drill in the field earning dollars. Our service technicians are backed by our team of engineers to ensure solutions not bandaids to issues. And our production processes mean your mud drill is constructed consistently and tested thoroughly to ensure easier service support.

Engineered with efficiency and ease in mind, investing in a Geoprobe® mud drill simplifies your sampling while reliably ramping up production and rig utilization rates.

Our team of engineers thrives on collaborating with drillers while they continually innovate new designs for our mud drill line. Our goal is to make your job faster, safer, and easier. Partner with us and we"ll work to decrease your mud drill downtime while increasing your family time.

The 42-year-old, family-owned American Drilling Services in Florida, relied on homemade drill rigs to complete primarily 2- to 4-inch residential water wells. With demand increasing, they began looking for newer technology in order to complete more mud pump well drilling.

“Technology is always changing. We used to drill galvanized steel with cable drilling. Now we’re exclusively rotary drilling,” said William Diaz, driller, who has been with the company for seven years. “The technology gets better, and things get easier.”

“We used to do one well per day, occasionally two. The DM250 has helped us keep up with the workload by being able to drill quicker,” Diaz said. “The pulldown power of the top head is significantly stronger than our previous rigs. With the mud pump, we can clean out the hole a lot faster, which means less waiting around.”

Continental Emsco Drilling Products, Inc., which consisted of Emsco drilling machinery and Wilson mobile rigs, was purchased by National-Oilwell, Inc on July 7, 1999. To our knowledge, no pumps have been manufactured and sold under the Emsco brand name since National-Oilwell acquired them.

Fairbanks Morse pumps are currently manufactured in Kansas City, Kansas. Fairbanks Morse is a division of Pentair ever since August, 1997 when Pentair purchased the General Signal Pump Group.

Gaso pumps are manufactured by National Oilwell Varco. Gaso was acquired as "Wheatley Gaso" by National-Oilwell in the year 2000. At the time, Wheatley Gaso was owned by Halliburton.

Skytop Brewster pumps are no longer available as new pumps. Skytop Brewster(Cnsld Gold), a unit of Hansen PLC"s Consolidated Gold Fields subsidiary, was acquired while in bankruptcy by National-Oilwell, Inc. in November, 1999.

The drilling mud pumps are of immense utility to the oil companies, for the purposes related to oil well drilling. The pumps have the reciprocating piston for circulating the drilling fluid. These units work at high pressure and provide for low noise, smooth operations, provisions for easy maintenance and disassembly, and stable fluid flows among other features. The drilling mud pumps should be procured from experienced and reputed Houston pump manufacturers only, because of their critical nature, and the circumstances and hazards oil well drilling are exposed to.

The best of drilling well pumps manufacturers in Houston and USA offers a comprehensive range of products and are a one-stop destination for many of your oil well service/drilling pumps and other needs. A good company will offer you all the popular and important pumps including the quintuplex pumps, triplex pumps, well service pumps, horizontal direction drilling pumps, false rotary tables, powered packages, and more. These manufacturers will offer you free of cost consultation upon your contact and will advise you on the best products that will suit your application precisely.

The best of well mud drilling pumps product companies in Houston have the necessary services related to oil well drilling and operations. These include welding, testing, and fabrication services. A reputed pump company offers the products at a very affordable cost and under the guidance of expert technicians. The services also include the maintenance and repair services that may be provided to the client on-site. With a proper and comprehensive inventory of spare parts, the best of drilling mud pumps manufacturers in Houston ensure that your business operations never face undesired downtimes.

A noteworthy and popular drilling well pump manufacturer will have decades of existence and experience. These companies are well known to the local and global oil companies and have a sound market base. Their high quality pumps not only offer reliable performance but also adhere to the standards like the standard pertaining to the operational regions as well as hazardous areas.

When you want to buy a drilling well pump for your well mud drilling, acidulation, cementing, and other operations, you should research on the manufacturers and choose one that has proven experience and years of existence and prominence. The company should offer you a comprehensive range of products and services and should take care of all your maintaining services needed as well.

The mud pump is the heart of mud rotary drilling. This crucial piece of equipment is responsible for removing the cuttings produced when drilling a water well. Sure, on the surface, the mud pump might not be the most exciting part of a water well drilling rig. But if your crew relies on mud rotary drilling methods, your operation will literally be stuck in the mud without the proper mud pump — no matter how much horsepower and torque your drill sends down the borehole.

To better understand why the mud pump should be a key consideration when selecting a water well drill we need to take a closer look at this un-sung hero of water well drilling.

Despite its simplicity, the humble mud pump plays an important part in overall drilling efficiency. As crew members drill, the drill bit produces cuttings. These pile up in the bottom of the borehole and prevent crews from making progress – like trying to dig a hole with a shovel but throwing the dirt back into the hole every time. Mud pumps offer a solution.

Water is pumped from the mud pump to the drill pipe where it exits through the holes in the drill bit — which may be several inches or hundreds of feet deep in the borehole. Water fills the borehole, forcing the loose cuttings up and out of the hole.

Instead, we put the drilling process first. Lone Star Drills has spent decades growing its drill lineup based not just on specs, but on grueling real-world performance. No one knows better than the person in the field, so we’re constantly sending out new mud pumps and new designs to our customers across the globe and innovating our mud pumps to maximize efficiency.

But keep in mind the mud pump is only part of the overall water well drilling rig. How the whole system works together will determine water well drilling effectiveness. For example, our drills incorporate a three-way valve with a bypass so crews can quickly divert the flow of water from the mud pump, add drill pipe, reconnect water flow and continue drilling all within seconds. Drills that don’t have this feature require crews to fully shut down the mud pump to stop water flow, add drill pipe and power back on the mud pump to restart water flow — a burdensome process for deep wells that require dozens of pipe sections.

Proper mud pump pairing is the key to efficient water well drilling. That’s why Lone Star Drills offers a variety of mud pumps to match the drill for optimal performance. We offer both gasoline- and diesel-powered pumps offering up to 13 horsepower for achieving greater depths.

In addition to flushing cuttings, the mud pump helps stabilize the borehole, as the mixture of water and mud keeps it from collapsing. Using the mud pump, crews can even add bentonite to the pumped water to create a coating that binds to the borehole walls and prevents water from escaping.

When choosing a size and type of mud pump for your drilling project, there are several factors to consider. These would include not only cost and size of pump that best fits your drilling rig, but also the diameter, depth and hole conditions you are drilling through. I know that this sounds like a lot to consider, but if you are set up the right way before the job starts, you will thank me later.

Recommended practice is to maintain a minimum of 100 to 150 feet per minute of uphole velocity for drill cuttings. Larger diameter wells for irrigation, agriculture or municipalities may violate this rule, because it may not be economically feasible to pump this much mud for the job. Uphole velocity is determined by the flow rate of the mud system, diameter of the borehole and the diameter of the drill pipe. There are many tools, including handbooks, rule of thumb, slide rule calculators and now apps on your handheld device, to calculate velocity. It is always good to remember the time it takes to get the cuttings off the bottom of the well. If you are drilling at 200 feet, then a 100-foot-per-minute velocity means that it would take two minutes to get the cuttings out of the hole. This is always a good reminder of what you are drilling through and how long ago it was that you drilled it. Ground conditions and rock formations are ever changing as you go deeper. Wouldn’t it be nice if they all remained the same?

Centrifugal-style mud pumps are very popular in our industry due to their size and weight, as well as flow rate capacity for an affordable price. There are many models and brands out there, and most of them are very good value. How does a centrifugal mud pump work? The rotation of the impeller accelerates the fluid into the volute or diffuser chamber. The added energy from the acceleration increases the velocity and pressure of the fluid. These pumps are known to be very inefficient. This means that it takes more energy to increase the flow and pressure of the fluid when compared to a piston-style pump. However, you have a significant advantage in flow rates from a centrifugal pump versus a piston pump. If you are drilling deeper wells with heavier cuttings, you will be forced at some point to use a piston-style mud pump. They have much higher efficiencies in transferring the input energy into flow and pressure, therefore resulting in much higher pressure capabilities.

Piston-style mud pumps utilize a piston or plunger that travels back and forth in a chamber known as a cylinder. These pumps are also called “positive displacement” pumps because they literally push the fluid forward. This fluid builds up pressure and forces a spring-loaded valve to open and allow the fluid to escape into the discharge piping of the pump and then down the borehole. Since the expansion process is much smaller (almost insignificant) compared to a centrifugal pump, there is much lower energy loss. Plunger-style pumps can develop upwards of 15,000 psi for well treatments and hydraulic fracturing. Centrifugal pumps, in comparison, usually operate below 300 psi. If you are comparing most drilling pumps, centrifugal pumps operate from 60 to 125 psi and piston pumps operate around 150 to 300 psi. There are many exceptions and special applications for drilling, but these numbers should cover 80 percent of all equipment operating out there.

The restriction of putting a piston-style mud pump onto drilling rigs has always been the physical size and weight to provide adequate flow and pressure to your drilling fluid. Because of this, the industry needed a new solution to this age-old issue.

As the senior design engineer for Ingersoll-Rand’s Deephole Drilling Business Unit, I had the distinct pleasure of working with him and incorporating his Centerline Mud Pump into our drilling rig platforms.

In the late ’90s — and perhaps even earlier —  Ingersoll-Rand had tried several times to develop a hydraulic-driven mud pump that would last an acceptable life- and duty-cycle for a well drilling contractor. With all of our resources and design wisdom, we were unable to solve this problem. Not only did Miller provide a solution, thus saving the size and weight of a typical gear-driven mud pump, he also provided a new offering — a mono-cylinder mud pump. This double-acting piston pump provided as much mud flow and pressure as a standard 5 X 6 duplex pump with incredible size and weight savings.

The true innovation was providing the well driller a solution for their mud pump requirements that was the right size and weight to integrate into both existing and new drilling rigs. Regardless of drill rig manufacturer and hydraulic system design, Centerline has provided a mud pump integration on hundreds of customer’s drilling rigs. Both mono-cylinder and duplex-cylinder pumps can fit nicely on the deck, across the frame or even be configured for under-deck mounting. This would not be possible with conventional mud pump designs.

The second generation design for the Centerline Mud Pump is expected later this year, and I believe it will be a true game changer for this industry. It also will open up the application to many other industries that require a heavier-duty cycle for a piston pump application.

Rotary table drive, Gardner Denver 5 x 6 FG-41 mud pump, Ingersoll Rand Type 40 air cooled air compressor, munted on 1979 GMC Brigadier J9500 tandem axle truck, 30’ x 9’ x 11’ (10’ with Kelly and lights removed)  Price:  $41,000

Manufactured 1975, double drum, refurbished, air compressor (PTO), 5-1/2 x 8 mud pump, mounted on 1975 International with 6 cyl Detroit diesel engine, 38"9" derrick, 3 lines to hook, 3" swivel (reduced to 2" mud hose), 3-1/2" fluted kelly, 5 ½" stationary table, pipe rack, no pipe available  Price:  $87,500

5 x 6 mud pump, stationary table, 4”  kelly, mounted on 1979 International truck with diesel engine, PTO, pipe racks, 4 hyd leveling jacks, 200’ drill pipe, needs new gearbox  Price:  $62,500

Detroit 671 diesel deck engine, no mud, no air compressor, retractable table, 26’ square Kelly (can run 33’ casing), mounted on 1981 GMC Brigadier with Cat 3208 engine, pipe racks (holds approx. 500’), hydraulic breakout, hydraulic pulldown, air clutches, 3 leveling jacks, 900’ drill pipe, 22’ 3-axle trailer, (2) 4-1/2” x 20’ drill collars, (1) 5-1/2” x 30’ drill collar, misc change overs and pick up plugs  Price:$54,500

Manufactured 1976, 750/250 air compressor, 10” retractable rotary table, Little Giant swivel, mounted on 4 axle Crane Carrier, 400 Big Cam engine (5000 hours), 1000’ of 3-1/2” x 20’ drill pipe (fits on rig)  Price: $117,500

Manufactured 1974, complete rebuild, 5 x 8 high pressure mud pump, 54’ derrick, 7-1/2” retractable rotary table (rebuilt 2018), Cummins 290 on deck, kelly bushing has been replaced, 290 Cummins deck engine, air clutches, wet clutch on main drive replaced, no air compressor, mounted on 4 axle Crane Carrier with 315 Cummins engine, 10 speed transmission, new clutch, tires 90%.  Includes 340’ of 4-1/2” x 20’ drill pipe, 6” stabilizer, 5” stabilizer, new tires (90%), brakes, clutches and bearings have been replaced  Price:  $215,000

Manufactured 1978, PTO, mounted on CCC with diesel engine, (2) 5 x 8 mud pumps, 3 x 4 Mission mud pump, 10" retractable rotary table, 4" fluted Kelly, no air, 4 hydraulic leveling jacks, no pipe available   Price Reduced:$165,000

Manufactured 1977, Cummins 400 Big Cam 3 engine (less than 300 hours since in frame), 5-1/2 x 8 Gardner Denver mud pump, Gardner Denver WEJ 750/250 air compressor with blower, 52" x 100,000# 4-line derrick, 2500" racking board, hydraulic power tongs range 2-3/8 – 4-1/2, mounted on 4 axle Crane Carrier, 4 cylinder Bean mist pump, hydraulic hydramatic trip hold back, hydraulic kelly hold back, 4-1/2" square kelly with kelly cock, 10" Gardner Denver rotary table, swabbing drum with 2000" cable.

Manufactured 1978, 5-1/2 x 10 Gardner Denver mud pump, no air compressor, 10" retractable table, mounted on 1977 Autocar with 350 Cummins engine, PTO, air clutches, 58" extended mast, 4-1/2" x 24" kelly (smaller kelly available), piep rack, breakout tongs, racking boards, chain pulldown, 5 hyd levelng jacks   Price: $165,000

GARDNER DENVER 14W DRILL RIG(Ref#13060Ra)  Manufactured 1973, 650/250 air compressor, Gardner Denver 5 x 6 mud pump, air clutches, 10” retractable table, 40’ mast,  4-1/2” x 25’ kelly, mounted on tandem axle Crane Carrier with 375 hp Cummins engine, 13 speed transmission, 3 leveling jacks, rod box, pipe racking stand, 210’ of 4-1/2” x 15’ drill pipe, running condition, does 65 mph Price:  $74,500

Gardner Denver 5 x 6 mud pump, big air compressor, retractable table, mounted on 1991 International 4800 truck with diesel engine, approx. 193,000 miles  Price:  $110,000

Gardner Denver mud pump, stationary table, 2-7/8" kelly, mounted on 1977International truck, approx. 300’ 2-7/8" drill pipe, 7-7/8" & 9-1/4" bits, running condition  Price:$62,500

Manufactured 1972, mounted on 1991 Morooka MST1500 track with Isuzu 4 cyl motor, dump bed, 100 hp John Deere deck engine, 5 x 6 mud pump, 300 gallon water tank Price:  $100,000

GARDNER DENVER 1000HD(Ref#15652T)  Manufactured 1979, 5 x 6 Failing mud pump, Leroi developmental air compressor, 23’ fluted kelly, 7-1/2” retractable Speedstar table, hydraulic pulldown, air over hydraulic clutches, pipe rack, breakout wrench, mounted on International truck with DT466 engine, 3 hyd jacks, 300’ of 20’ pipe

Manufactured 1957, 5 x 6 Gardner Denver mud pump (new gear end and fluid end), 7-1/2” retractable table, 24’ kelly, 35’ mast, chain pulldown with hydraulic motor, mounted on 1973 Diamond Reo double frame, 290 Cummins engine, 8 speed transmission, engine and transmission new, 2 rear and 1 front leveling jacks, 300’ of 2-3/8” drill pipe, mud pan, 2 bits, ready to work, new cables   Price:  $62,500

MAYHEW 1000(Ref#11322T)  Mounted on 1994 Ford truck, Cat engine, 7-1/2” table, 5 x 6 Gardner Denver mud pump, 23’ kelly, 2” swivel, hydraulic pulldown, water injection pump, 3 leveling jacks  Price:  $60,000

MAYHEW 1000(Ref#8472T)  Set up for drilling and workover, 4” square kelly, stationary table, mounted on 1974 International Lodestar, 5 x 6 Gardner Denver mud pump, no rod box, breakout tongs,  400’ of 2-3/8” x 20’ drill pipe, 10” surface bit, (2) 4” drill collars, 11 new button bits, 3 axle pipe trailer   Price:  $44,500

GARDNER DENVER 1000(Ref#13496T)  Manufactured 1979, 5 x 6 mud pump, 200 cfm air compressor, 5-1/2" retractable table, 3-3/4" x 23" fluted kelly, hydraulic pulldown, mechanical clutches, pipe rack, pipe wrench, mounted on 1979 Ford 9000 truck with Detroit 6V92, 4 hyd jacks, drills daily  Price:  $112,500

MAYHEW 1000(Ref#891Ta)  Manufactured 1978, 5 x 6 Gardner Denver mud pump, Gardner Denver air compressor, 5-1/4" stationary table, mounted on 1997 International truck with Cummins engine, 10 speed transmission, 30" mast, 25" kelly, chain pulldown, 2 rear leveling jacks, 300" of 2-7/8" IF drill pipe  Price:  $79,500

MAYHEW 1000(Ref#891T)  5 x 6 Gardner Denver mud pump, IR air compressor, 7-1/2" Mayhew rotary table, 30" mast, 25" kelly, chain pulldown, air clutch, mounted on 1996 Ford LT9000 truck with Cummins engine, 2 rear jacks, 300" drill pipe  Price:  $89,500

Manufactured 1970, only 200 hours since in-frame overhaul, mounted on 1970 GMC with straight 671 Detroit engine, 5x6 GD mud pump, GD 580 air compressor, 18" kelly, hydraulic pulldown, mechanical clutches, breakout tongs, pipe rack, 1 front screw jack & 2 rear hydraulic leveling jacks, 150" of 2 7/8"IF x 15" drill pipe  Price:  $47,500

Air compressor, 5 x 6 mud pump, 23" kelly, 7-1/2" rotary table, mounted on 1996 International truck with Cummins 350 hp engine, 300" of 2-7/8" OD with 2-3/8 IF drill pipe, air clutches  Price:  $90,000

5 x 6 Garnder Denver mud pump, Gardner Denver air compressor, 5-1/4" stationary rotary table, mounted on 1997 Ford L9000 truck with Cummins 350 hp diesel engine, chain pulldown, 23" kelly, new brakes, new drums, new kelly bushings  Price:  $75,000

mounted on Rio 6x6 with Cat 3306 rebuilt engine, Fuller 10 speed transmission, Gardner Denver 5 x 6 mud pump, Leroi 100s air compressor, 2000 stationary table, 3 ½" x 23" Kelly, water injection pump, 500 gallon water tank, hydraulic pulldown, mechanical clutches, breakout wrench, 2 rear hydraulic leveling jacks, 200 of 2 7/8" x 20" drill pipe and International

Completely refurbished 2010, derrick needs a little work, Mission Magnum Sandmaster 4 x 3 x 13 mud rotary pump, mounted on 1998 Mack CH613, completely with 2-3/8 pipe and various bits  Price:  $167,500

PTO, mounted on 1971 White Constructor with 290 Cummins engine, 6 x 6 Wheatley mud pump, 580 CFM air compressor, custom made 42’ mast, 36’ Kelly, stationary table, mechanical clutches, pulldown, 1 front 2 rear hydraulic leveling jacks, no breakout wrench, no pipe or tools available  Price:  $42,500

Manufactured 1970, PTO, mounted on 1970 Chevy with gas engine, 5 x 6 Gardner Denver mud pump, 185 CFM on board air compressor with John Deere diesel engine, spudding arm, 5-1/4" stationary table, hydraulic pulldown, 3 hydraulic leveling jacks, 23" Kelly, 210" of 2 3/8" x 15" drill pipe, stabilizer    PRICE ON REQUEST

5" stationary table, 4 x 5 Gardner Denver mud pump, developmental air compressor, 4" square kelly, hydraulic pulldown, mechanical clutches, mounted on 1990 GMC Kodiak truck with Cat 3208 engine, 3 hyd leveling jacks, pipe rack, 220" of 2-7/8" x 15" drill pipe  Price:  $49,500

Short wheel base, runs 15" pipe, 5-1/4 table, winch, 400/200 air compressor, 8 gpm water injection, mounted on Peterbilt 330 truck with Cat 3126E engine, RT8709B transmission, drill pipe, mud pit PRICE: $97,500

SPEEDSTAR 135(Ref#3612T)  (2) 5 x 6 Gardner Denver mud pump, 7-1/2" rotary table, chain pulldown, 7 speed transmission, 466 engine (210 hp), 1991 International truck, 4 leveling jacks  Price:  $95,000

SPEEDSTAR SS-135 DRILL RIG(Ref#11810Ta)  Manufactured 1976, 5-1/2 x 8 mud pump, 8-1/2” DSM retractable table, mounted on 1994 Ford LN9000 truck with Cat 3306 engine, breakout wrench, rod box, 4 hyd leveling jacks, tools, 1000’ of 20’ 3-1/2” flush wall drill pipe, ready to work  Price:  $112,500

290 cfm air compressor, John Deere deck engine for compressor, 8-1/2” retractable table, hydraulic pulldown, 5 x 6 Gardner Denvermud pump, mechanical clutches, mounted on tandem axle 1997 International 9400 truck with DT466 engine, approx 500’ rods, some tools, good condition, ready to go  Price:$102,500

SPEEDSTAR 135SS DRILLING RIG PACKAGE(Ref#14196T)  Manufactured 1969, mounted on 1998 International 4900 truck, 9 speed transmission, tires 90%, PTO, 7-1/2” retractable rotary table, kelly/swivel, 2 rear hydraulic jacks, 5 x 10 Gaso 300 gpm mud pump (gear end 95%)

Manufactured 1974, Gardner Denver WEJ 1009 air compressor with second stage cooling, Gardner Denver FG-FXF 5 x 6 mud pump, mounted on 1974 Crane Carrier with 8V71N diesel engine (motor refurbished), less than 10,000 miles, PTO, air line lubricator, water injection pump, double drum drawworks, single line pull 15,000#, friction clutches, large brakes, sandreel drum 8000# capacity, 8-1/2” retractable rotary table, pulldown, 2” pitch feed chains, 35’ heavy duty derrick, 4-1/4” x 24’ round kelly bar, 2” water swivel, pipe rack  Price:  $143,000

Manufactured 1983, 5-1/2 x 8 Gardner Denver mud pump, low pressure piston air compressor (compressor is 2 stage but only the low is working now), mounted on International 4700 with diesel engine, PTO, 11” retractable table, no rod box or pipe rack, some 3-1/2” x 20’ bottleneck pipe included  Price:  $72,500

standard mast & pullback, PTO, mounted on International with diesel engine, GD 5 ½ x 8 mud pump, Leroi air compressor, 500" of 4-1/2 x 20 flush joint drill pipe  Price:  $143,500

Gardner Denver 5 x 8 FXX172 mud pump, air compressor, 9" retractable table, 40" mast, pulldown, mounted on 1977 Crane Carrier, Cummins 855 diesel engine, 3 hyd leveling jacks, drill pipe  Price:$115,000

Manufactured 1977, PTO, mounted on 1977 CCC with 290 Cummins engine, 3x4 centrifugal mud pump, Leroi 500/100 air compressor, 8-1/2" retractable table, 4-1/4" x 23" kelly, breakout wrench, pipe rack, 1 front & 2 rear hydraulic leveling jacks, 300" of 4-1/2" x 20" drill pipe, needs new truck  Price:  $39,500

SPEEDSTAR 1500(Ref#3153T)  500/250 air compressor, no mud pump, rotary table, mounted on Mack truck with diesel engine, PTO, front wheel assist, rod rack, 700’ drill pipe Price:  $72,500

Manufactured 1979, mounted on International Paystar 5000 with 350 Big Cam Cummins engine, PTO, centrifugal mud pump, pipe rack, 3-1/2IF 20’ drill pipe, currently drilling.  Also includes unounted Gardner Denver 5-1/2 x 8 mud pump  Price:  $144,500

Manufactured 1989, PTO, mounted on 1981 International with Cummins engine, 4x3 centrifugal mud pump, 900 CFM air compressor, hydraulic pulldown, mechanical clutches, 4-1/2" retractable table, 3-1/4" x 25" Kelly, chain pulldown, 3 hydraulic leveling jacks, rod box, portable mud pit, 200" of 3-1/2" IF x 15" drill pipe Price:  $115,000

Manufactured 1980"s, Gardner Denver 5 x 6 mud pump, chain pulldown, 4-1/2" kelly, 8-1/2" retractable table, Mounted on 1983 Peterbilt truck with Cummins 350 engine, PTO, 2 rear and 2 front levelng jacks, 800" of 2-7/8" drill pipe  Price:  $122,500

Manufactured 1970"s, mounted on 1991 International with DT466 engine, 4 -1/2 x 5 Failing mud pump, auto chucks, 32" mast, 17" x 2 3/8" kelly, 2 leveling jacks  Price:  $37,500

1500 retractable table, 2-3/8" kelly, mechanical clutches, 5 x 6 Gardner Denver mud pumps, mounted on 1978 I6000 truck, Cat diesel engine, needs work (fluid ends needs rebuildeing, needs new hydraulic banks) Price:  $49,000 PRICE REDUCED: $34,500

1500 drawworks, PTO, mounted on 1996 International 4700 4x2 truck with DT466 engine, (2) drilling pumps:  Failing L100 800 max test pressure, 350 max working pressure and Gardner Denver FFFXFM 148.5 gpm, 639 max pressure, retractable table, mechanical clutches, hydraulic pulldown, 2 3/8” Kelly, 1 front & 2 rear hydraulic leveling jacks  Price:  $38,500

Manufactured 1966, 5-1/2 x 8 mud pump, mounted on 1972 Brockway 10 wheeler  truck with 781 Detroit diesel, PTO, 23’ kelly, 8-1/2” rotary table, breakout table, mechanical pulldown, mechanical clutches, hydraulic quills, 3 jacks    PRICE:  $64,000

Manufactured 1964, 5 x 6 mud pump, 2-3/8” kelly bar, 20” table (opens to 22”), heavy duty mast, 2 winches w/15” clutch, hydraulic pulldown, mounted on 1964 International truck, PTO, double plated frame, 304 International engine, needs minor repairs

Manufactured 1988, no mud pump, no air compressor, 6-1/2” inner diameter / 11” outdoor diameter retractable rotary table, 3-1/2” x 21’ kelly, mechanical chain pulldown, mechanical clutches, rod box, sandline, mounted on 1988 International FSeries 6 x 4 truck with DT466 gas engine, Eaton 10 speed tranmission, 200’ of 2-3/8” drill rod, truck and rig is operatable but could use some work, 3 leveling jacks  Price:  $41,500

Manufactured 1980, 5-1/2 x 8” Gardner Denver duplex pump, 23’ kelly, chain pulldown, air clutches, breakout wrench, 5-5/8” retractable rotary table, derrick 34’ from table to crown, mounted on 2005 Kenworth T300, 3 hydraulic leveling jacks, 260’ of 2-7/8” x 20’ drill pipe, roller and drag bits, very good condition, currently drilling  Price:  $137,500

2500 gallon Flatwater Fleet water tank, 300 gallon fuel tank, pump and hose, 2010 Kaeser M57 210 cfm air compressor (1200 hours), upper platform to carry two (2) pallets, spot lights, toolboxes, 162,000 miles  Price:  $62,500

Manufactured 1979, 5 x 6 Gardner Denver mud pump, Leroi 50S2 air compressor for drilling, 8" retractable table, 3-3/8" x 23"6"" kelly, 31"6" heavy duty mast, pulldown, mechanical clutches, Myers water injection, mounted on GMC Brigadier truck with 3208 Cat engine, 3 hydraulic leveling jacks, 500" , 3-5/8 x 15" drill pipe, bits, subs, good condition

Manufactured 1974, LeRoi 50S2 air compressor, 5 x 6 mud pump, 5-1/4" retractable table, 3-3/8" fluted kelly, 3 hydraulic leveling jacks, pulldown, mechanical clutches, breakout wrench, mounted on 1974 International tandem axle truck with Detroit 8V71 diesel engine (overhauled less than 1000 hours), 200" of 2-7/8" x 20" drill pipe Price:  $77,500

Manufactured 1973, 5 x 6 mud pump, 8” rotary table, 2-3/8” kelly, mounted on 1966 Kaiser Military 5 x 5 10-wheel truck with 6 cyl diesel engine, 200’ of 2-3/8” drill pipe, truck in fair condition  Price:  $49,000

5 x 6 mud pump, Leroi 50SD air compressor, 5-1/2” retractable table, chain pulldown, mechanical clutches, mounted on Ford truck, PTO, breakout wrench, rod box, approx. 300’ of 3” x 30’ (2-3/8 IF) drill pipe  Price:  $62,500

FAILING 1250 HOLEMASTER(Ref#796T)  Manufactured 1988, 5 x 6 Failing mud pump, (extra 5 x 6 pump included), 85 cfm Atlas Copco air compressor (can be remounted as an auxiliary compressor), 2” diaphragm mud pump, 7-1/2” retractable table, capable of drilling o 16”, mounted on 1988 International truck with DT466 (235 hp) engine, engine rebuilt 2012 with only 4000 hours), 10 speed transmission, 360’ drill pipe, tooling, 4-1/2” – 20” bits  Price:$122,500

Manufactured 1988, PTO, mounted on 1993 Ford 9000 with 250 Cummins engine, 9 speed Fuller transmission, 5 x 6 mud pump, no air, 5-1/4" stationary table, 2" Little Giant swivel, 18" x 3 5/8" round Kelly, hydraulic pulldown, mechanical clutches, breakout tongs, 2 rear hydraulic leveling jacks, 200" drill pipe, ready to go

Manufactured 1972, 5 x 6 mud pump, 50S1 LeRoi air compressor, pulldown, mechanical clutches, mounted on International tandem axle truck with gas engine, 40,000# mast, 15,000# drawworks, 3 drum bailer, single line pull, driller and helper"s platforms, hydraulic pulldown with 1-1/2" pulldown chains, 2" Little Giant swivel, toolracks, 3 hydraulic leveling jacks, 240" of 3-1/2" x 15" FJ (2-3/8 IF) drill pipe, LF breakout wrench, good condition, currently drilling  Price:  $90,000PRICE REDUCED:  $87,500

Manufactured 1980, mounted on 1980 International truck with DT466 engine, 5 x 6 Gardner Denver mud pump, no air compressor, 5-1/4” retractable rotary table, 3-1/2 X 24’ kelly, chain pulldown, 2” swivel, new fuel pump, new head gasket PRICE REDUCED: $48,500 - DEAL PENDING

Manufactured 1970, completely rebuilt, 5 x 6 Failing mud pump, developmental air compressor, sandline, mounted on 1990 Freightliner truck with Cat 3406 (600 hours), 5-1/4" retractable table, rod box, mechanical clutches, chain pulldown, 2" rebuilt swivel, new 32" mast, well maintained, ready to drill, no drill pipe

FAILING 1250(Ref#12693T)  Manufactured 1973, 5 x 6 mud pump, chain pulldown, retractable table, mounted on 1973 International truck, 345 gas engine, no drill pipe  Price:  $54,500

FAILING 1250(Ref#14820T) Manufactured 1965, mounted on 1970 Chevy with gas engine, 5x6 mud pump, 5-1/4” retractable table, 18’ kelly, hydraulic pulldown, mechanical clutches, breakout wrench, 1 front & 2 rear hydraulic leveling jacks, hydraulic pump has been removed, stored inside, sitting but running when parked  Price:$30,000

Built 1964, 4-1/2 x 5 Failing mud pump, Grimmer Schmidt 125cfm developmental air compressor, 5-1/4” stationary table, 2-3/8” kelly, 10" stroke, mounted on 1984 International truck with DT466 engine, PTO), 4 hydraulic over mechanical jacks, needs new tires

Manufactured 1965, mounted on 1979 International S series 2551 tandem axle truck with DT466 diesel engine, (2) mud pumps: Failing FM45 5 x 6 duplex and Gardner Denver FG FXG 5 x 6 duplex, Ingersoll Rand Type 30 250/125 air compressor hydraulically driven, 26’ x 25,000# derrick, 3-3/8” x 18’ kelly, King 15 KF water swivel, 1-1/4” pulldown chains, 5-1/4” rotary table with locking nut, air controlled clutches, welder, pipe rack, 150 gal mud pit, breakout tongs, 1 front & 2 rear hydraulic leveling jacks, stored inside, sitting but running when parked   Price:$35,000

5 x 6 Wheatley mud pump, Gardner Denver developmental air, hydraulic pulldown, mechanical clutches, stabilizer, mud pan, 3-1/2" kelly, stationary table, mounted on Ford Louisville tandem axle truck with 290 Cummins engine, PTO, 2 rear hydraulic jacks, 200" of 3-1/2" x 20" drill pipe, good condition, currently drilling  Price:  $65,000 PRICE REDUCED:  $50,000

Manufactured 1980, 425 cfm air compressor, 5 x 6 Gardner Denver mud pump, mounted on 1980 International truck with DT466 engine, retractable table, rod box, 600’ drill pipe  Price:  $69,500

3 x 4 Gardner Denver mud pump, 650/50 compressor, PTO, mounted on 1979 International 2-ton tandem axle truck with diesel engine, 3-1/2” kelly, 7-1/2” fixed table, 3 hydraulic jacks, pipe rack, mechanical pulldown, 300’ of 2-7/8” drill pipe (2-3/8 IF)  PRICE:$52,500

Mounted on 1974 Mack truck with V8 Mack engine, new 2" Little Giant swivel, 23" kelly, 5-1/4" rotary table, 256 LeRoi air compressor, 5 x 6 Gardner Denver piston pump, 2 hyd jacks, low hours, ready to work PRICE REDUCED: $72,500

Mounted on 1996 Ford F series 2 wheel drive with 5.9 Cummins diesel engine, 5-1/4" stationary table, 2 3/8" x 15" Kelly, 5x6 GD mud pump, chain pulldown, mechanical clutches, breakout wrench, rod rack, 255" of 15" Mayhew Jr rods, subs, bits, casing elevators, 4 hydraulic leveling jacks, ready to go

4-1/2 x 6 Gardner Denver piston mud pump, no air, 2-7/8" x 18" kelly (runs 10" x 2-708" rods), mounted on 2000 International 4700 w/DT466 engine, no drill rod, Mayhew Junior thread on kelly, all new hydraulic control valves, brakes clutches are all new or have recently been replaced  Price:  $37,500

Manufactured 1985, mounted on Ford F800 4 x 4 truck with diesel engine, front winch, rotary table, drawworks and mud pump are new, set up for 4” wells, drill pipe and tools included  Price:  $49,500

FAILING 250(Ref#3448T)  Manufactured early 1970"s, mounted on Ford 6 wheel drive Ford F750 truck, 391 gas engine, 4-1/2 x 5 mud pump, 290 cfm air compressor, 4" retractable table (no casing can go through), chain pulldown, 2-3/8 kelly, sandline, 10" stroke (can be pulled to 20"), running condition  Price:  $29,500

Manufactured 1980, Midway 1500 drawworks, PTO, mounted on 1980 International f-2574 with 1996 Detroit engine, 10 sp transmission, 38000# rear axles, 24.5 bud wheels, 16000# front axle w/22.5 floatation tires, 4 leveling jacks, 5 ½ x 8 mud pump, new 8-1/2" Midway retractable table, 3-3/4" x 34" fluted kelly (new 2011), 3-3/4" x 5-1/4" new master bushing, 49"2" mast with new cylinders (can run 44"5" casing), 3" plumbing, 2" swivel, 2" kelly hose, hydraulic pulldown, new drivemotor 2013, hydraulic cathead, 792 Spicer transfer case (rebuilt 2013 with air controls), new lifting cylindes on mast, new main hyd pump 2012, 4 part linesm BVM breakout tong, heavy duty work floor with hinged trap door

Manufactured 1975, drawworks completely rebuilt, 7-1/2 x 10 Gardner Denver mud pump, hydraulic pulldown, 54" derrick with racking board, rod box, mounted on 1978 International Paystar 5000 truck with 350 Cummins engine.  Price:$139,500

Manufactured 1975, 600 cfm/150 air compressor, mounted on 1975 Autocar with 350 Cummins engine, new tires, misc tools, bits, Gardner Denver 5 x 6 mud pump, 1998 Ingersoll Rand 600/150 air compressor w/3500 hours on 8/3 L Cummins engine  Package Price:  $112,500

MIDWAY 1500(Ref#15626R)  Manufactured late 1970’s, no mud pump, square kelly, no pulldown, 8” retractable table, mounted on newer Freightliner truck with diesel engine, air clutches, no pulldown, breakout tongs, 1 front and 2 rear hydraulic leveling jacks, no rod box, no pipe rack, 300’ of 20’ drill pipe (2-3/8” IF),  Price:  $54,500

Manufactured 1977, 600 cfm Leroi air compressor, 5 x 6 Gardner Denver mud pump, 8-1/2" table retractable, pull down, 9 gpm Bean pump, mounted on 1977 Ford 9000 truck with 671 Detroit engine (overhauled 2014), 600" of 2-7/8" drill stem, well maintained, ready to work  Price:  $162,500 PRICE REDUCED:  $105,000

Manufactured 1978, PTO, mounted on 1979 Ford 9000 with Cat engine, 5x6 mud pump, Leroi 750cfm air compressor, 3" x 23" kelly, 8" stationary table, breakout wrench, rod box, hydraulic pulldown, mechanical clutches, mud pan, 300" of 2 7/8" x 20" drill pipe, no leveling jacks, good running condition

PTO, mounted on 1991 Mack with diesel engine, 5x6 mud pump, GD air compressor, 7-1/2" stationary table, pulldown, manual clutches, rod rack, 2 hydraulic leveling jacks, good condition  Price:  $67,500

3 drum drawworks, mechanical clutches, Spicer air shift PTO, 2 rear hyd leveling jacks, 8” retractable table, 3-1/2” x 24’ square kelly, 2” Little Giant swivel, new 3 x 4 Mission mud pump, hydraulic pulldown, mounted on 1993 Freightliner truck with Cat 3406 engine, approximately 400’ of 2-7/8” full hole drill pipe  Price:  $62,500

Manufactured 1978, Triple drum, new bearings on drawworks and pulldowns, 5-1/2" x 8" Gardner Denver duplex mud pump, no air compressor, 57" x 60,000# hydraulic raised mast, Racking board, Mounted on 1978 Kenworth tandem axle truck with 8V92 Detroit diesel and PTO, 4 hydraulic leveling jacks and 2 rear screw jacks, Hydrostatic drive drawworks and rotary table, water injection, 8-1/2" retractable rotary table (4 speed transmission on rotary table), will run Range 3, 4-1/2" x 25" kelly, 4 speed hyd pulldown

Manufactured 1984, Leroi 600/250 air compressor, 5-1/2 x 8 duplex mud pump, 53’ tubular mast, racking bord, hydrostatic double drum drawworks, 7-1/2" hydrostatic rotary table, hydraulic pulldown, 24’ kelly bar, 3000’ capacity sandline, mounted on 1982 Kenworth C500 truck with 6V92TAC Detroit diesel, breakout tongs, hydraulic breakout wrench, hydraulic cathead with spinning chain, pipe rack, 1 front and 2 rear hydraulic jacks, 2-7/8" upset x 20’ pipe, 4-1/2" flush joint x 20’ pipe  Price:  $194,500

Manufactured 1978, Triple drum, new bearings on drawworks and pulldowns, 5-1/2" x 8" Gardner Denver duplex mud pump, no air compressor, 57" x 60,000# hydraulic raised mast, Racking board, Mounted on 1978 Kenworth tandem axle truck with 8V92 Detroit diesel and PTO, 4 hydraulic leveling jacks and 2 rear screw jacks, Hydrostatic drive drawworks and rotary table, water injection, 8-1/2" retractable rotary table (4 speed transmission on rotary table), will run Range 3, 4-1/2" x 25" kelly, 4 speed hyd pulldown

Manufactured 1976, PTO, mounted on International Paystar 5000 with rebuilt 350 Cummins engine, 6 x 8 Gardner Denver mud pump, 256S2 Leroi compressor, Bean water injection, 7-1/2" retractable table, 53" hydraulically raised mast, hydraulic pulldown, hydrostatic, breakout tongs, 4-1/2" hex Kelly (fluted available) no pipe rack or rod box

Manufactured 1974, 5-1/2 x 8 Gardner Denver chain driven mud pump (rebuilt), 256 LeRoi air compressor (rebuilt), 7-1/2” retractable table, mechanical clutches, pulldown, 4-1/2” x 23’ kelly (mast is set up for 30’ kelly), mounted on 1999 Kenworth truck with 440 hp Cat engine, PTO, pipe spinner, breakout tongs, water injection pump, 3 hydraluc leveling jacks, good condition,  rebuilt hydrostate, chain cases and rotary table, 200’ drill pipe and tools    Price:$175,000.

Manufactured 1974, PTO, mounted on 1974 Diamond Rio with Detroit 8V92 Detroit engine (3 years old), extended mast, rebuilt drawworks & Leroi 256S2 air compressor, no mud, sandline, 4-1/2" x 23" Kelly, breakout tongs, 8" retractable table, air clutches, hydraulic pulldown, pipe rack, 1 front & 2 rear hydraulic leveling jacks, 200" of 4-1/2" x 15" drill pipe, rig in operating condition Price:  $100,000 PRICE REDUCED: $79,500

Manufactured 1976, 3 x 4 centrifugal mud pump, LeRi 256S2 air compressor (very low hours on rebuilt), Detroit 8V92 deck engine, mounted on 1976 Paystar 5000 truck with International diesel engine, 3 hyd leveling jacks, 8-1/2" retractable table, 4-1/2" fluted kelly, new swivel, racking board, 38" mast, BJ tongs, air hammer, spare TKT transmission, some tools,

Manufactured 1972, Detroit 318 engine, 7-1/2” retractable table, 4” x 36’ kelly, chain pulldown, mounted on International 4900 tandem axle truck with 466 DT engine, 10 speed transmission, 400’ of 4-1/2” x 20’ (3-1/2 IF) drill pipe, 700’ of 4” x 30’ FH drill pipe, handling tools, last used 2021, 4 x 3 centrifugal MCM pump with John Deere engine  Price:$93,500

Manufactured 1979, mounted on 1979 International Paystar 5000 truck, 5 leveling jacks, 7-1/2" retractable rotary table, 26" kelly, 2" Little Giant swivel, 5-1/2 x 8" Gardner Denver mud pump, 256 LeRoi air compressor, racking board, currently working PRICE REDUCED: $92,500

PORTADRILL 120(Ref#9801T)  Manufactured 1968, 5 x 6 Gardner Denver mud pump, 6" stationary table, 3-1/2" x 23" kelly, mounted on 1987 Peterbilt with diesel engine, PTO, pipe rack

Built 1986, approx 540’ depth, double drum (shop build with triple clutch on each side), Gardner Denver 5 x 8 mud pump, 2” DSM swivel, 8-1/2” retractable table, trailer mounted, 46’ mast mechanically raised, 4” square kelly, 420" of 2-7/8" drill pipe  Price:  $47,500

Detroit V8 engine, 11 speed transmission, 5 x 10 Gaso hydraulic mud pump, 42’ mast, 8-1/2” retractable table, 4-1/2” x 25’ fluted round kelly, hydraulic drive winch, mounted on 1980 International, 4 hyd jacks Price:  $137,500

INGERSOLL RAND RO-300 DRILL RIG(Ref#1555Tb)  Detroit V8 engine, 11 speed transmission, (2) 5 x 6 Gardner Denver hydraulic driven pumps, 8-1/2” retractable table, 42’ mast, hyd driven double drum winch, w/ram driven kelly, 5-1/2” x 25’ kelly, mounted on 1981 International Paystar truck, 4 hyd jacks  Price:  $137,500

Built approx 2007, 150’ – 200’ depth capacity, rig has heavy duty railroad winch cable for up and down drilling operations or for pulling pumps, 3” centrifugal mud pump, IR 40 cfm developmental air compressor, pump and compressor run off Handona gas engines, boom will handle 10’ or 20’ rods, mounted on 1998 Ford 700 2 wheel drive truck, 7 ltr propane engine, (2) tanks (40 and 80 gal), drilling, hydraulics and truck run on propane, 500 gal water tank, pipe rack, compact rig.  Includes approx 120’ of 1-1/4” x 10’ rods, bits for 1-1/4”, 2” and 4” wells,  Price:  $30,000

Manufactured 1974, mounted on 1974 Ford LN8000 with rebuilt Cat 3208, new front tires, no ruse, LeRoi compressor, 5 x 6 Gardner Denver mud pump, injection pump, new 2” plumbing, 8” retractable table, 3 hyd jacks, rod rack, 5 stabilizers 6”-12”, 19 rods of 2-7/8”, 26 rods of 3-1/2”, several bits and subs 4”-10”

Manufactured 1973, 5 x 6 Gardner Denver mud pump (new pistons and liners 2016), 50 SDS air compressor, bailing drum, 24’ kelly, 8-1/4” retractable table, hydraulic pulldown, air clutches, mounted on 1989 Chevy Topkick with Cat 3208T, rod box, 300’ of 3” drill stem, tools, well maintained  Price:  $47,500  Additional pipe available at extra cost.

EWBANKS 50(Ref#13911Ra)  4 x 5 mud pump, mounted on 1978 International single axle truck, Cat 3208 engine, PTO, 5-1/4” stationary rotary table, no air, square kelly, mud pan, pipe rack, 200’ pipe  Price:  $37,500

Built 1986, mounted on 1986 GMC Brigadier truck with Cat 3208 engine, Ford 4 cylinder Industrial deck engine, 5 x 6 mud pump, 1 mainline winch, 1 sandline winch with free fall, sitting outside for a while, was in proper working condition when parked Price on Request

Manufactured 1973, 871 Detroit diesel on deck, 450 cfm Bendix Westinghouse air compressor, no mud pumps but hydraulics are there, 4” kelly, 8” retractable table, bailing line, mounted on 1972 Ford F900 tandem axle truck with 434 gas engine, 3 hydraulic jacks, 200’ of 4-1/2” x 15’ drill pipe, sitting since 2019  Price:  $37,500

4 cylinder Ford diesel engine on deck, 38" hydraulically raised mast, 5-1/2" table retractable to 18" x 12" deep, 3-1/2" x 20" fluted Kelly, drill line drum, sandline drum and casing drum (no line on rig).  2-part block, shock in the crown for cable drilling,  Mounted on 1992 Ford L7000 all-wheel drive truck with 6 cyl Ford diesel engine, automatic transmission with big hydraulic pump, low miles, 3 hydraulic leveling jacks, needs new hoses and swivel.  Price:  $32,500 - Oklahoma

CYCLONE 35R(Ref#6558T)  5” Gardner Denver mud pump with 3 cyl diesel engine, no air, square kelly, retractable table, hydraulic pulldown, pipe rack, 4 cylinder diesel deck engine, mounted on 1985 Mack twin screw with diesel engine, 3 hyd leveling jacks, 300’ of 2” x 16’ drill pipe  Price:  $64,500

Built 1966, 5 x 6 mud pump, developmental air compressor, mounted on 1966 Ford F950 Super Duty with gas engine, (2) gas deck engines (one runs rig, one runs air compressor and mud pump), 240’ drill rod, 15’ sub and bit  Price:  $29,500

Built 1980’s, trailer mounted, new swivel, 420cc engine, 250’ – 500’ depth, 30 gpm hydraulic pump (newer hoses), 2000# electric winch, 2” mud pump, 2 gpm mist pump, 250’ of 10" drill pipe, 2 drill collars, tooling, bit, subs,.  180 cfm Sullair compressor, water tank/pipe trailer  Price:  $46,500

Built new 74 HP Kohler Tier 4 Turbo diesel industrial deck engine, Industrial Permco dual 28 gpm main pump w/vari speed split driver circuits in volve controls, 3 x 2” MCM Model 118 mud pump 350 gpm/95 psi, 150 rpm main drill head 1000 ft/lb torque, 55 gal hyd reservoir, 12,000# push/pull force w/chain hoist drive, 16’6” tubular 4x6 mast 12’ stroke, designed for 10’ Mayhew Jr drill pipe, 82000 BTU hydraulic oil cooler, swivel with extreme duty 18,000# twin thrust bearing set and shevron seals w/changeable ware sleeves, hydraulicuniversal breakout system, swing away drill head, ½” minimum watercourse through all piping, 22 gallon fuel tank, 20’ of 3” charge line, 20’ of 2” bypass hose w/cam locks, 12 volt primer and wash down pump, removable drill pipe guide, 1200# hydraulic accessory host telewscoping to 22’ height for casing work w/drill pipe tool for lifting and handling drill stem.  Weight (skid mounted unit):  6500 lbs., dimensions (trailer mounted) 110” long x 90” wide (will fit in 20’ shipping container)  Price, skid mounted:  $59,500  Price, trailer mounted:  $69,500

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This article is about onshore equipment for boring holes into the ground. For offshore oil rig, see Oil platform. For drilling tunnels, see Tunnel boring machine. For handheld drilling tool, see Drill.

A drilling rig is an integrated system that drills wells, such as oil or water wells, or holes for piling and other construction purposes, into the earth"s subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers. Drilling rigs can sample subsurface mineral deposits, test rock, soil and groundwater physical properties, and also can be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called "offshore oil rigs" even if they don"t contain a drilling rig). The term "rig" therefore generally refers to the complex equipment that is used to penetrate the surface of the Earth"s crust.

Small to medium-sized drilling rigs are mobile, such as those used in mineral exploration drilling, blast-hole, water wells and environmental investigations. Larger rigs are capable of drilling through thousands of metres of the Earth"s crust, using large "mud pumps" to circulate drilling mud (slurry) through the drill bit and up the casing annulus, for cooling and removing the "cuttings" while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or natural gas; and in remote locations there can be permanent living accommodation and catering for crews (which may be more than a hundred). Marine rigs may operate thousands of miles distant from the supply base with infrequent crew rotation or cycle.

Antique drilling rig now on display at Western History Museum in Lingle, Wyoming. It was used to drill many water wells in that area—many of those wells are still in use.

Until internal combustion engines were developed in the late 19th century, the main method for drilling rock was muscle power of man or animal. The technique of oil drilling through percussion or rotary drilling has its origins dating back to the ancient Chinese Han Dynasty in 100 BC, where percussion drilling was used to extract natural gas in the Sichuan province.Edwin Drake to drill Pennsylvania"s first oil well in 1859 using small steam engines to power the drilling process rather than by human muscle.Cable tool drilling was developed in ancient China and was used for drilling brine wells. The salt domes also held natural gas, which some wells produced and which was used for evaporation of the brine.

In the 1970s, outside of the oil and gas industry, roller bits using mud circulation were replaced by the first pneumatic reciprocating piston Reverse Circulation (RC) drills, and became essentially obsolete for most shallow drilling, and are now only used in certain situations where rocks preclude other methods. RC drilling proved much faster and more efficient, and continues to improve with better metallurgy, deriving harder, more durable bits, and compressors delivering higher air pressures at higher volumes, enabling deeper and faster penetration. Diamond drilling has remained essentially unchanged since its inception.

Oil and natural gas drilling rigs are used not only to identify geologic reservoirs, but also used to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line.

Mining drilling rigs are used for two main purposes, exploration drilling which aims to identify the location and quality of a mineral, and production drilling, used in the production-cycle for mining. Drilling rigs used for rock blasting for surface mines vary in size dependent on the size of the hole desired, and is typically classified into smaller pre-split and larger production holes. Underground mining (hard rock) uses a variety of drill rigs dependent on the desired purpose, such as production, bolting, cabling, and tunnelling.

In early oil exploration, drilling rigs were semi-permanent in nature and the derricks were often built on site and left in place after the completion of the well. In more recent times drilling rigs are expensive custom-built machines that can be moved from well to well. Some light duty drilling rigs are like a mobile crane and are more usually used to drill water wells. Larger land rigs must be broken apart into sections and loads to move to a new place, a process which can often take weeks.

Small mobile drilling rigs are also used to drill or bore piles. Rigs can range from 100 short tons (91,000 kg) continuous flight auger (CFA) rigs to small air powered rigs used to drill holes in quarries, etc. These rigs use the same technology and equipment as the oil drilling rigs, just on a smaller scale.

The drilling mechanisms outlined below differ mechanically in terms of the machinery used, but also in terms of the method by which drill cuttings are removed from the cutting face of the drill and returned to surface.

An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry.Athabasca oil sands. According to the "Oil Patch Daily News", "Each rig will generate 50,000 man-hours of work during the construction phase and upon completion, each operating rig will directly and indirectly employ more than 100 workers." Compared to conventional drilling rigs", Ensign, an international oilfield services contractor based in Calgary, Alberta, that makes ADRs claims that they are "safer to operate, have "enhanced controls intelligence," "reduced environmental footprint, quick mobility and advanced communications between field and office."steam assisted gravity drainage (SAGD) applications was mobilized by Deer Creek Energy Limited, a Calgary-based oilsands company.

Baars, D.L.; Watney, W.L.; Steeples, D.W.; Brostuen, E.A (1989). Petroleum; a primer for Kansas (Educational Series, no. 7 ed.). Kansas Geological Survey. p. 40. Archived from the original on 8 November 2020. Retrieved 18 April 2011. After the cementing of the casing has been completed, the drilling rig, equipment, and materials are removed from the drill site. A smaller rig, known as a workover rig or completion rig, is moved over the well bore. The smaller rig is used for the remaining completion operations.