Oil and Gas Information logo
Home About

Monarch Field Activity and Well Summary

Back to Montana Well Records

Total wells

48
Monarch field

Drill activity

—
drill dates not in our copy of this source

The Monarch oil & gas field in Montana contains 48 wells on file.

Top operators: MMGL MT I, LLC, Shell Oil Company, and others.

Most recent well: Mystery Creek 34-14H, operated by MMGL MT I, LLC — last updated May 2007.

Monarch field coverage

Counties the Monarch 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 CountyBlaine CountyJudith Basin CountyPowell CountyPark CountyRoosevelt CountyFallon — 48 wellsMcCone 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
< 4848+48+48+48+

Recent wells

Well Name County Last activity Updates Operator API
Mystery Creek 34-14H Fallon 2007-05-10 MMGL MT I, LLC 25025210920000
Mystery Creek 31-26H Fallon 2005-10-17 MMGL MT I, LLC 25025225190000
Mystery Creek 34X-10H Fallon 2002-08-11 MMGL MT I, LLC 25025210100000
Monarch 11-01H Fallon 2001-11-22 Encore Operating LP 25025219920000
Mystery Creek 14-24H Fallon 2001-10-22 MMGL MT I, LLC 25025219560000
Mystery Creek 43X-26H Fallon 2001-09-09 MMGL MT I, LLC 25025219610000
Mystery Creek 41-22 Fallon 2001-08-20 Denbury Onshore, LLC 25025219620000
Monarch Unit 43-15 Fallon 2001-03-07 MMGL MT I, LLC 25025219080000
Monarch Unit 21-26 Fallon 2001-02-26 MMGL MT I, LLC 25025219350000
Monarch Unit 23-26 Fallon 2000-07-09 MMGL MT I, LLC 25025218980000

Top Operators in the Monarch field by total wells

MMGL MT I, LLC34Shell Oil Company3Encore Operating LP2D&A Water Disposal LLC2Denbury Onshore, LLC2Wesco Operating, Inc.1Burlington Resources Oil & Gas Company LP1Citation Oil & Gas Corp.1Shell Western E & P Inc.1Badlands Resource Recovery, Inc.1

Operators: Mmgl Mt I, Llc, Shell Oil Company, Encore Operating Lp, D&a Water Disposal Llc, Denbury Onshore, Llc, Wesco Operating, Inc., Burlington Resources Oil & Gas Company Lp, Citation Oil & Gas Corp., Shell Western E & P Inc., Badlands Resource Recovery, Inc..

Counties Intersected by the Monarch field

Fallon48
Fallon

Other Major Fields in Montana most active by total wells

Compare the Monarch 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.