Oil and Gas Information logo
Home About

Devon Field Activity and Well Summary

Back to Montana Well Records

Total wells

46
Devon field

Drill activity

—
drill dates not in our copy of this source

The Devon oil & gas field in Montana contains 46 wells on file.

Top operators: Ranck Oil Company, Inc., KCS Resources, Inc., and others.

Most recent well: Hellinger 23-1, operated by Ranck Oil Company, Inc. — last updated January 2003.

Devon field coverage

Counties the Devon field intersects.

Musselshell CountyChouteau CountyMeagher CountyRosebud CountySweet Grass CountyLewis and Clark CountyPondera CountyGarfield CountyCarter CountyGallatin CountyLiberty CountySilver Bow CountyCascade CountyFlathead CountyFergus CountyBroadwater CountyBig Horn CountySanders CountyLincoln CountyGranite CountyCuster CountyRichland CountyWibaux CountyGolden Valley CountyCarbon CountyToole — 46 wellsBlaine CountyJudith Basin CountyPowell CountyPark CountyRoosevelt CountyFallon CountyMcCone CountyStillwater CountyTeton CountyDawson CountyPowder River CountyGlacier CountyLake CountyHill CountyTreasure CountyMineral CountyYellowstone CountyJefferson CountyDeer Lodge CountyWheatland CountyRavalli CountyValley CountyPetroleum CountyPhillips CountyMissoula CountySheridan CountyDaniels CountyPrairie CountyMadison CountyBeaverhead County
< 4646+46+46+46+

Recent wells

Well Name County Last activity Updates Operator API
Hellinger 23-1 Toole 2003-01-30 Ranck Oil Company, Inc. 25101239490000
Hellinger 15-1 Toole 2001-04-12 Ranck Oil Company, Inc. 25101238920000
Kinyon 14-1 Toole 2001-04-08 Ranck Oil Company, Inc. 25101238910000
E. Crooked Coulee 1-25H Toole 1998-10-28 EOG Resources, Inc. 25101238450000
Hellinger 11R-30B Toole 1997-08-15 Ranck Oil Company, Inc. 25101238120000
FOWLER 12-7 Toole 1997-01-04 KCS Resources, Inc. 25101237890000
Hellinger 14-23 Toole 1989-10-27 Ranck Oil Company, Inc. 25101233310000
Driscoll 16-13R Toole 1988-12-09 Ranck Oil Company, Inc. 25101232990000
Rhoda 3-13 Toole 1988-11-30 Ranck Oil Company, Inc. 25101232920000
Hellinger 1-25 Toole 1987-11-04 Ranck Oil Company, Inc. 25101231720000

Top Operators in the Devon field by total wells

Ranck Oil Company, Inc.25KCS Resources, Inc.8Montana Power Company2Walsh, F.P.2LaMarsa Corp.1Dyrdahl, Bob1Montana Dakota Utilities1Smith, C.L.1Thelen & Freeman1Mon-Dak Utilities Co. & Fidelity Gas Co.1

Operators: Ranck Oil Company, Inc., Kcs Resources, Inc., Montana Power Company, Walsh, F.p., Lamarsa Corp., Dyrdahl, Bob, Montana Dakota Utilities, Smith, C.l., Thelen & Freeman, Mon-Dak Utilities Co. & Fidelity Gas Co..

Counties Intersected by the Devon field

Toole46
Toole

Other Major Fields in Montana most active by total wells

Compare the Devon field against the other busiest oil and gas fields in Montana:

  • Kevin-Sunburst · 3,580 wells
  • Cut Bank · 2,610 wells
  • Cedar Creek · 1,308 wells
  • Bowdoin · 977 wells
  • Elm Coulee · 937 wells
  • Tiger Ridge · 876 wells
  • Cx · 861 wells
  • Pondera · 626 wells
  • Bell Creek · 541 wells
  • Elm Coulee, Northeast · 470 wells

Browse Wells by State

  • Colorado Wells
  • Louisiana Wells
  • Montana Wells
  • New Mexico Wells
  • Ohio Wells
  • Oklahoma Wells
  • Pennsylvania Wells
  • Texas Wells
  • Utah Wells
  • Wyoming Wells

Oil & Gas Hub Cities

  • Houston, TX
  • Midland, TX
  • Odessa, TX
  • Fort Worth, TX
  • Dallas, TX
  • San Antonio, TX
  • Corpus Christi, TX
  • Tyler, TX
  • Longview, TX
  • Laredo, TX
  • Lafayette, LA
  • Shreveport, LA
  • Baton Rouge, LA
  • Lake Charles, LA
  • Houma, LA
  • New Orleans, LA

City links resolve to that city’s county/parish well activity page.

Browse by Geology

  • All US oil & gas basins
  • Where the data comes from
  • Search operators & companies

Oil and Gas Information

Copyright © 2026 Oil and Gas Information. All rights reserved.