Texas operator · P-5 766370
Sem Operating Company LLC
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Sem Operating Company LLC
Railroad Commission record
Who the state lists
The Railroad Commission lists this company as an operator: it reports wells and leases in Texas.
- Name on file
- SEM OPERATING COMPANY LLC
- Operator number (P-5)
- 766370
- P-5 status
- Active
- Organization type
- Limited liability company (code not in the RRC's 2014 layout; inferred from the names)
- Location
- Houston, TX
- Mailing city
- Houston, TX
- Activities filed
- Gas Operator, Oil Operator
- Last P-5 received
- June 23, 2026
- Record built
- July 30, 2013
- Refiling required
- Yes
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Comptroller and Secretary of State
A possible match in the Comptroller's file
This record matched the company by name and place, not by a number both files share. Check it before relying on it.
- Legal name
- SEM OPERATING COMPANY LLC
- Taxpayer number
- 32051109919
- Entity type
- Texas limited liability company
- Secretary of State file number
- 0801792508
- Secretary of State status
- Active (May 29, 2013)
- Right to transact business in Texas
- Active
- Formed
- May 29, 2013
- Formed in
- TX
- Mailing city
- Tyler, TX
Source: Texas Comptroller, franchise tax permit holder file (data.texas.gov), as of September 26, 2026.
Look it up yourself: Secretary of State business filings (search for file number 0801792508), Comptroller account status.
Production
What the state's reports show
- Oil, last 12 months
- 4,690,070 barrels
- Down 1.5% from the 12 months before
- Gas, last 12 months
- 55,764,513 mcf
- Down 1.2% from the 12 months before
Oil reported each month, in barrels
- Jul 2026305,195
- Jun 2026310,534
- May 2026329,914
- Apr 2026339,575
- Mar 2026364,590
- Feb 2026354,585
- Jan 2026407,977
- Dec 2025449,563
- Nov 2025448,367
- Oct 2025484,738
- Sep 2025468,582
- Aug 2025426,450
Source: Railroad Commission of Texas, production data query, as of July 1, 2026.
Drilling permits
Permits filed with the state
52 drilling permits in the last three years: 6 in 2023, 15 in 2024, 18 in 2025, 13 in 2026. A permit is permission to drill. It is not a well.
| Issued | Lease, county and type |
|---|---|
| 2026-07-14 | UNIVERSITY 40 #1102WAIrion County · Horizontal |
| 2026-07-13 | UNIVERSITY 40 #1511WCCrockett County · Horizontal |
| 2026-07-13 | UNIVERSITY 40 #1509WCCrockett County · Horizontal |
| 2026-07-13 | UNIVERSITY 40 #1507WCCrockett County · Horizontal |
| 2026-07-13 | UNIVERSITY 40 #1503WCCrockett County · Horizontal |
| 2026-05-11 | UNIVERSITY 40 E #1803WCIrion County · Horizontal |
| 2026-05-08 | UNIVERSITY 40 E #1803WBIrion County · Horizontal |
| 2026-03-12 | UNIVERSITY 40D #0703WCIrion County · Horizontal |
| 2026-03-12 | UNIVERSITY 40D #0701WCIrion County · Horizontal |
| 2026-03-06 | UNIVERSITY 40 #1310WCIrion County · Horizontal |
Source: Railroad Commission of Texas, drilling permit records.
Leases
Leases this company operates
74 leases on the state record, 71 with production in the last twelve months. The largest by production:
- University 09CReagan County · 1,105,564 bbl of oil
- University 9Reagan County · 1,089,477 bbl of oil
- University 2-58Reagan County · 495,372 bbl of oil
- University 10-11Reagan County · 533,193 bbl of oil
- University 40Crockett County · 131,658 bbl of oil
- University 43Irion County · 204,087 bbl of oil
- University 27-34Reagan County · 244,573 bbl of oil
- MayerIrion County · 60,848 bbl of oil
- University 38-40Irion County · 65,209 bbl of oil
- University 43 "A"Irion County · 26,823 bbl of oil
- University 2AReagan County · 69,637 bbl of oil
- Linthicum BIrion County · 27,960 bbl of oil
- FaudreeIrion County · 10,489 bbl of oil
- Noelke AIrion County · 7,324 bbl of oil
- Linthicum CIrion County · 9,755 bbl of oil
- University 38Crockett County · 19,377 bbl of oil
- Ham Unit Re M 2Reagan County · 40,662 bbl of oil
- University LucyIrion County · 10,962 bbl of oil
- Eaglehead 'C' A4Reagan County · 38,806 bbl of oil
- Linthicum MIrion County · 9,371 bbl of oil
- MunsonIrion County · 13,635 bbl of oil
- Pembrook 1011 UnitReagan County · 28,274 bbl of oil
- University 40 CCrockett County · 12,410 bbl of oil
- Mayer AIrion County · 10,843 bbl of oil
- Munson BIrion County · 6,689 bbl of oil
Operator changes
Leases this company took over or handed over
1 taken over and 68 handed over since the state's history begins; 0 and 1 in the last twelve months. The month is the first month the change shows in production reports.
- Handed over Neal, Upton CountyJan 2026 · to Saxum Opco, LLC
- Took over Linthicum "1223", Irion CountyOct 2020 · from Petex
- Handed over Byers, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Eastham State Prison Farm, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Ferguson Prison Unit, Madison CountyMar 2020 · to Etx Energy, LLC
- Handed over Gail King, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Ferguson Prison Unit, Madison CountyMar 2020 · to Etx Energy, LLC
- Handed over W. A. Adams Gas Unit, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Eastham State Prison Farm, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Eastham State Prison Farm, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Eastham State Prison Farm, Houston CountyMar 2020 · to Etx Energy, LLC
- Handed over Jones, Houston CountyMar 2020 · to Etx Energy, LLC
Use it
Follow this company, or check a paper it sent you
New permits and production
One email a week when Sem Operating Company LLC files a drilling permit, completes a well or reports first production. Free with an account.
A paper from this company
A division order, a lease, a buyout offer or a letter: upload it and we say what it is, what it asks and which terms deserve a question.
FAQ
Questions people ask
Who is Sem Operating Company LLC?
The Railroad Commission lists Sem Operating Company LLC as operator number 766370, P-5 active, in Houston, TX. Its leases reported 4,690,070 barrels of oil and 55,764,513 mcf of gas in the last twelve months.
Is Sem Operating Company LLC a registered business in Texas?
The Comptroller's franchise tax file lists a possible match by name and place: SEM OPERATING COMPANY LLC, a texas limited liability company, Secretary of State status Active, right to transact business in Texas: Active. The match is by name and place, not by a number both files share, so check it before relying on it. Confirm it in the Secretary of State's business search.
How much oil and gas did Sem Operating Company LLC report?
In the last twelve months the leases Sem Operating Company LLC operates reported 4,690,070 barrels of oil and 55,764,513 mcf of gas to the Railroad Commission, through July 1, 2026. It has 74 leases on the state record, 71 with production in that time.
How many drilling permits has Sem Operating Company LLC filed?
52 drilling permits in the last three years in the permit feed this site reads. A permit is permission to drill, not a well: many are never drilled.
I got a letter or an offer from Sem Operating Company LLC: what should I do?
Do not sign or call yet. Keep every page and the envelope, compare the paper with your deed, lease and last statements, and answer in writing. You can upload the letter to have it read: it says what kind of paper it is, what it asks, and which terms deserve a question, quoting the words they come from.
Where does this page's information come from, and how current is it?
The record is the Railroad Commission's P-5 Organization Report file, dated September 22, 2026. The entity is the Comptroller's franchise tax file. Production, permits and leases are the Commission's own reports. The page shows no rating and no opinion.
Related
Keep going
- Texas dataTexas oil and gas companiesOperators and buyers: the state's record, permits, leases, production.
- HelpI got a letter from an oil companyUpload it. We say what it is, what it asks and what to look at.
- ToolTexas well watchPermit, completion, first production and when the first check is due.
- Texas dataTexas operator changesWho took over whose leases in the last 24 months.
- CheckCheck my statementUpload a stub. Every month against the state record.
- HelpTexas division ordersWhat you may sign, what you may refuse, what to check.
Sources
Primary sources, opened on 29 September 2026. Statute text is the current version on statutes.capitol.texas.gov.