Washington 425-869-2372
North Dakota 701-225-6140
Drilling Professionals You Can Count On
 

Oil and Gas Surface Well Drilling

Ensure aquifers are safe and save money on surface well drilling costs when Gregory Drilling drills your surface wells. Our well drilling equipment is used exclusively for water-based drilling. Our teams and processes are designed to protect aquifers and they meet or exceed all applicable government requirements.

Drilling Projects Client List

Together the Gregory family and our long-term, highly-skilled employees have completed drilling projects of all sizes and complexities.

Our Oil and Gas Clients include:

  Amerada Hess
  Amoco
  BP
  BNI Coal Mine, ND
  Cascade Natural Gas
  CH2M Hill
  Conoco Phillips
  Corrpro Companies
  Continental
  Energy NW – Hanford Nuclear Site
  ND Public Service Commission
  Puget Sound Energy
  Tennaco
  TransAlta Mining


North Dakota Operations Surface Casing Equipment List

Gregory Drilling invests heavily to ensure clean, safe work sites. Our state-of-the-art equipment in the hands of our highly-trained employees enables us to safely drill any job in any soil conditions. We can install 9-5/8 inch casing up to 4,000 feet. You can be confident your job will be completed safely and on-schedule.

2008 Atlas Copco RD20 III Rig #308

  1250/350 IR air compressor
  10x6 Crane Carrier with Cat C13
  High torque rotary head (8,000 ft/lb 0-120 rpm)
  Range III derrick, 120,000# pullback
  755 hp Cummins QSK19 deck engine
  5 hydraulic jack legs
  Floating spindle sub

IDECO 7-1/4 x 16 FB Mud Mover

  71/2" x16" Maximum 754 gpm, 1050 psi with 71/4" liners
  Matco forged steel fluid end, with quick change caps
  Hydril K020-3000 pulsation dampener
  Cat D-379 diesel engine
  Mounted in skidded pump house

Support Equipment

  Sterling Tractors
  3 axle and 2 axle trailers for drill pipe and mud pumps
  Auxiliary fuel tanks
  4 1/2" drill pipe, 6 3/4" drill collars, and 8" collars
  Crew trucks and crew trailers, if needed
  Combination doghouse/tool trailer

Contact us online or phone 701-225-6140 today to discuss your oil or gas surface well drilling needs.


  • Rig not yet setup: Drilling rig is driven into place in preparation to drill a water depot well to support Bakken drilling operations.
  • Drilling site with rig up: A trained, experienced crew and all the right equipment to drill water depot wells in North Dakota's rugged winter conditions.
  • Drilling crew in action drilling a water depot well in North Dakota.