Marathon Oil Company Wells and Activity Summary
Back to Montana Well Records
Total wells
Most recent drilling
First on record
Activity status
Annual production via Marathon Oil Corp corporate filings
Recent M&A activity 8 deals on file involving Marathon Oil Corp
| Announced | Type | Headline | Value |
|---|---|---|---|
| May 2024 | Corporate |
ConocoPhillips to Acquire Marathon In a Deal Worth $22 Billion
0 net acres |
$22.0B |
| Nov 2022 | Asset |
Marathon Acquires Eagle Ford Asset From Ensign For $3 Billion
130,000 net acres |
$3.0B |
| Nov 2019 | Property |
Marathon Oil Bolts On in the Eagle Ford; Acquires Lavaca County Acreage
18,000 net acres |
$185M |
| Feb 2019 | Property |
Marathon Oil to Sell Off UK Assets to RockRose for $140 Million
0 net acres |
$140M |
| Mar 2018 | Property |
Marathon Sells Off Libyan Assets for $450MM
0 net acres |
$450M |
| Mar 2017 | Property |
Marathon Oil Bolt-on Delaware Acreage For $700 MIllion
21,000 net acres |
$700M |
| Mar 2017 | Property |
CNRL Acquires Oil Sands Property From Marathon and Shell For $12.7 Billion
0 net acres |
$12.7B |
| Mar 2017 | Property |
Marathon Inks $1.1B Deal for 70,000 Delaware Basin Acres
70,000 net acres |
$1.1B |
Industry news recent coverage mentioning Marathon Oil Corp
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Apr 16, 2026Higher oil prices are not translating cleanly into a drilling response across U.S. shale, and company disclosures are starting to show why. The issue is not simply capital discipline. It is structural. A meaningful… Read full article on ShaleExperts →
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Apr 15, 2026In the span of fifteen months, three Japanese energy companies committed more than $10.3 billion to U.S. natural gas production assets — a buying spree that has transferred roughly 27% of Haynesville Shale output… Read full article on ShaleExperts →
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Apr 15, 2026The first quarter of 2026 has officially defined the "Barbell Era" of American oil and gas. While the total number of deals plummeted by 46% YoY (dropping to just 7 major transactions), the total deal value skyrocketed… Read full article on ShaleExperts →
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Apr 11, 2026Western Canadian M&A activity in Q1 2026 was characterized by a 87% decrease in total deal value compared to Q1 2025, totaling $0.8 billion C$ . However, transaction volume remained resilient with a 150% increase in… Read full article on ShaleExperts →
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Mar 23, 2026Energy Secretary Chris Wright stood in front of the largest gathering of oil executives in the world this morning and delivered a message that was equal parts market economics and wartime urgency: the price spike is… Read full article on ShaleExperts →
⚑ Same company across states: Marathon Oil Corp
Curated alternate names for Marathon Oil Corp (from ShaleExperts company records):
- MARATHON OIL, MARATHON OIL CO, MARATHON OIL CO., MARATHON OIL COMPANY, MARATHON OIL EF LLC, MARATHON OIL PERMIAN LLC
Marathon Oil Company has 16 wells on file in Montana.
Active in 9 counties — concentrated in Carter, Sheridan, and Daniels.
Most recent well: Cornell Camp 1-20 (Beaverhead county) — last updated October 1987.
Marathon Oil Company county coverage
Counties where Marathon Oil Company has wells. Click any county for its local activity.
Recent wells
| Well Name | County | Last activity | Updates | API |
|---|---|---|---|---|
| Cornell Camp 1-20 | Beaverhead | 1987-10-14 | 25001210140000 | |
| KLEPPEN 1 | Sheridan | 1980-08-25 | 25091213190000 | |
| OLSON FARMS 2 | Sheridan | 1980-06-18 | 25091213020000 | |
| OLSON FARMS 1 | Sheridan | 1980-02-21 | 25091212950000 | |
| State 1 | Carter | 1979-01-24 | 25011212790000 | |
| BN COASTAL 1 | Fallon | 1978-11-27 | 25025211350000 | |
| Schreibeis 1-17 | Big Horn | 1978-07-10 | 25003211200000 | |
| B.N. 1 | Musselshell | 1973-08-30 | 25065211890000 | |
| BLM-MT 44498 1 | Carter | 1968-10-16 | 25011211420000 | |
| Montana 3296 1-26 | Carter | 1968-10-06 | 25011211380000 |
Counties Worked by total wells in Montana
Counties: Carter, Sheridan, Daniels, Valley, Treasure, Fallon, Big Horn, Beaverhead, Musselshell.