RRC operator 766370
Sem Operating Company LLC
Sem Operating Company LLC reported 4.7 million barrels of oil and 56 million mcf of gas in the last 12 months.
Operator dossier
- Producing leases
- 71of 74 on record
- Counties
- 3
- Biggest county
- Reagan County
- Biggest field
- Lin (Wolfcamp)
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Where they work
fewermore
- Gas, last 12 months
- 55,764,513 mcf
- Fields
- 2
- Data through
- Jul 2026
- Leases on record
- 74
Five years of Sem Operating Company LLC output
Oil output from Sem Operating Company LLC held steady over the last 12 months
4.7M bbl through Jul 2026, against 4.8M bbl a year earlier. Peak Aug 2022: 503k bbl.
Gas output from Sem Operating Company LLC held steady over the last 12 months
56M mcf through Jul 2026, against 56M mcf a year earlier. Peak Oct 2023: 5.1M mcf.
SourceTexas Railroad Commission Production Data Query, operator 766370, through Jul 2026, file dated Sep 18, 2026.
Sem Operating Company LLC leases, biggest first
Under each volume: change on the year before.
1,105,564bbl oil−28%
1,089,477bbl oil+154%
533,193bbl oil+39%
495,372bbl oil−15%
244,573bbl oil−44%
204,087bbl oil+141%
131,658bbl oil−25%
69,637bbl oil−8%
65,209bbl oil−29%
- MAYER
7C-17681Irion CountyLin (Wolfcamp)
60,848bbl oil−24%
40,662bbl oil+22%
38,806bbl oil−6%
28,274bbl oil−5%
27,960bbl oil−15%
26,823bbl oil−30%
25,181bbl oil+32%
19,377bbl oil−19%
19,026bbl oil−3%
18,350bbl oil−16%
13,914bbl oil−10%
13,907bbl oil−26%
13,775bbl oil+30%
- MUNSON
7C-17584Irion CountyLin (Wolfcamp)
13,635bbl oil+13%
13,031bbl oil+1%
13,005bbl oil−32%
Showing 25 of 71, ranked by output value.
SourceTexas Railroad Commission Production Data Query.
Counties and fields where Sem Operating Company LLC produces
Counties, by Sem Operating Company LLC oil
Reagan County leads
Fields, by Sem Operating Company LLC oil
Lin (Wolfcamp) leads
Recent drilling permits for Sem Operating Company LLC
UNIVERSITY 40 #1102WA
new drill · horizontal · Sem Operating Company LLC · Irion County
Permit 0917106 · Jul 14, 2026
UNIVERSITY 40 #1511WC
new drill · horizontal · Sem Operating Company LLC · Crockett County
Permit 0917033 · Jul 13, 2026
UNIVERSITY 40 #1509WC
new drill · horizontal · Sem Operating Company LLC · Crockett County
Permit 0917032 · Jul 13, 2026
UNIVERSITY 40 #1507WC
new drill · horizontal · Sem Operating Company LLC · Crockett County
Permit 0917031 · Jul 13, 2026
UNIVERSITY 40 #1503WC
new drill · horizontal · Sem Operating Company LLC · Crockett County
Permit 0917028 · Jul 13, 2026
UNIVERSITY 40 E #1803WC
new drill · horizontal · Sem Operating Company LLC · Irion County
Permit 0915430 · May 11, 2026
Where the gas of Sem Operating Company LLC went
- Plants
- 98%
- Pipelines
- 0.0%
- Lease fuel
- 2.1%
- Flared or vented
- 0.4%
SourceTexas Railroad Commission Production Data Query, last 12 months. What the codes mean