McCone County, Montana Wells Summary
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Total wells
Most recent drilling
First on record
Activity status
McCone County contains 333 wells on file, with top operators including Shell Oil Company and True Oil LLC.
Wells in McCone span several oil & gas fields including Weldon and Richey.
Most recent well on record: CIRCLE WW, operated by No Bonded Operator — last updated March 2026.
County FIPS Code: 30055
Active drilling rigs · Baker Hughes snapshot, week of 2026-05-29
By basin
- 2 Williston
Drilling for
- 2 Oil
McCone County well density
Every dot is one well — small blue dots are historic wells;
larger orange dots are wells with activity in the last 60 days.
333 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in McCone County by total wells
Operators: Shell Oil Company, True Oil Llc, Gulf Oil Corporation, Sohio Petroleum Company, Sogc, Inc., Delta Petroleum, Inc., Atlantic Richfield Company, Amoco Production Company, Texota Oil Company, States Oil.
Top Oil & Gas Fields intersecting McCone County
Fields: Weldon, Richey, Cow Creek, East, Richey, Southwest, Wildcat Mccone, Prairie Elk, Richey, West, Vida, Lost Creek, Cow Creek.
Top Counties in Montana most active by total wells
Compare McCone against the other busiest counties in Montana:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| CIRCLE WW | 2026-03-18 | No Bonded Operator | 25055080040000 | |
| Duck Creek 1-1 | 2024-01-05 | Great Plains Energy, Inc. | 25055212090000 | |
| Duck Creek 1-5 | 2014-02-19 | Great Plains Energy, Inc. | 25055212080000 | |
| Rudolph Haynie 1-5 | 2012-05-25 | Zeiders Bros. Oil & Gas Company, L.L.C. | 25055212070000 | |
| State 6-13 | 2007-03-07 | Lonewolf Energy, Inc. | 25055212060000 | |
| McCrea 11-27HX | 2006-04-08 | Oasis Petroleum North America LLC | 25055212030000 | |
| Ware 1-26 | 2006-02-17 | Continental Resources Inc | 25055212050000 | |
| Gagne 1-23 | 2006-01-31 | Continental Resources Inc | 25055212040000 | |
| McCrea 11-27H | 2005-11-14 | Oasis Petroleum North America LLC | 25055212010000 | |
| Hintz 41-16 | 2004-10-01 | Great Plains Operating, LLC | 25055210510000 |
Surface Ownership Records: