SEM OPERATING COMPANY LLC Wells and Activity Summary
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Total wells
Last 60 days
Prior 60 days
60-day trend
Industry news recent coverage mentioning Sem Operating Company
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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: Sem Operating Company
Curated alternate names for Sem Operating Company (from ShaleExperts company records):
- SEM OPERATING CO LLC, SEM OPERATING COMPANY, SEM OPERATING COMPANY LLC, SEM Operating Company, LLC
SEM OPERATING COMPANY LLC has 302 wells on file in Texas.
Active in 9 counties — concentrated in Reagan, Irion, and Houston.
Most recent well: NEAL in the SPRABERRY (TREND AREA) field (Upton county) — last updated March 2026.
SEM OPERATING COMPANY LLC county coverage
Counties where SEM OPERATING COMPANY LLC has wells. Click any county for its local activity.
Recent wells
| Well Name | County | Last activity | Updates | API |
|---|---|---|---|---|
| NEAL | Upton | 2026-03-16 | 46134369 | |
| UNIVERSITY 9 | Reagan | 2026-03-11 | 4 | 38341912 |
| UNIVERSITY 9 | Reagan | 2026-03-06 | 4 | 38341911 |
| UNIVERSITY 9 | Reagan | 2026-03-06 | 4 | 38341913 |
| MUNSON | Irion | 2026-03-04 | 3 | 23535096 |
| UNIVERSITY 10-11 | Reagan | 2026-01-27 | 4 | 38341972 |
| UNIVERSITY 10-11 | Reagan | 2026-01-26 | 4 | 38341970 |
| UNIVERSITY 43 | Irion | 2026-01-09 | 2 | 23536693 |
| UNIVERSITY 43 | Irion | 2025-11-24 | 2 | 23536692 |
| UNIVERSITY 43 | Irion | 2025-11-21 | 2 | 23536691 |
Counties Worked by total wells in Texas
Counties: Reagan, Irion, Houston, Crockett, Madison, Upton, Grimes, Gaines, Dawson.
Top Oil & Gas Fields worked by SEM OPERATING COMPANY LLC by total wells
Fields: Lin (Wolfcamp), Eastham State Farm (Glenrose), Fort Trinidad, East (Buda), Ft. Trinidad, E. (Edwards), Fort Trinidad (Glen Rose, Upper), Fort Trinidad, East (Georgetown), Spraberry (Trend Area), Spraberry (Trend Area), Wildcat, Ft. Trinidad, Se. (Edwards).