Texas operator · P-5 763302
Sei Operating, LLC
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Sei Operating, 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
- SEI OPERATING, LLC
- Operator number (P-5)
- 763302
- P-5 status
- Active
- Organization type
- Limited liability company (code not in the RRC's 2014 layout; inferred from the names)
- Location
- Mandeville, LA
- Mailing city
- Mandeville, LA
- Activities filed
- Oil Operator
- Last P-5 received
- December 10, 2025
- Record built
- November 24, 2015
- Refiling required
- Yes
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Owner relations
How to reach Sei Operating, LLC as an owner
Not checked yet
We have not checked Sei Operating, LLC’s owner-relations desk yet. Here is how owners usually find it:
- Look at a recent check stub or statement. The phone number and address printed on it usually reach the owner relations department.
- Search the company’s own website for “owner relations” or “royalty owners”. Larger operators have a page and an online owner portal.
- The Railroad Commission file above has the company’s mailing address. A letter sent there reaches the company, though not always the right desk.
- Put your owner number and the property name or number on every letter and call.
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
- SEI OPERATING, LLC
- Taxpayer number
- 32058816888
- Entity type
- Texas limited liability company
- Secretary of State file number
- 0806085644
- Secretary of State status
- Active (June 18, 2025)
- Right to transact business in Texas
- Active
- Formed
- June 18, 2025
- Formed in
- Outside Texas (the file does not say where)
- Mailing city
- Weatherford, 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 0806085644), Comptroller account status.
Production
What the state's reports show
- Oil, last 12 months
- 12,637 barrels
- Up 23.5% from the 12 months before
- Gas, last 12 months
- 0 mcf
Oil reported each month, in barrels
- Jul 20261,059
- Jun 2026990
- May 2026958
- Apr 20261,125
- Mar 20261,108
- Feb 2026929
- Jan 20261,261
- Dec 20251,092
- Nov 20251,163
- Oct 20251,014
- Sep 20251,132
- Aug 2025806
Source: Railroad Commission of Texas, production data query, as of July 1, 2026.
Drilling permits
Permits filed with the state
0 drilling permits in the last three years. A permit is permission to drill. It is not a well.
Source: Railroad Commission of Texas, drilling permit records.
Leases
Leases this company operates
5 leases on the state record, 3 with production in the last twelve months. The largest by production:
Operator changes
Leases this company took over or handed over
0 taken over and 6 handed over since the state's history begins; 0 and 0 in the last twelve months. The month is the first month the change shows in production reports.
- Handed over Lyssy-Deering, Wilson CountyMar 2025 · to Chandler Oil & Gas, LLC
- Handed over Harris, Dawson CountyFeb 2025 · to Chandler Oil & Gas, LLC
- Handed over Zuber, P. Goodwin, Wood CountyAug 2023 · to Wtxr Operating (Texas), Inc.
- Handed over Blue Quail, Dawson CountyJun 2022 · to Crosstex Services, L.L.C.
- Handed over Michael Kent, Dawson CountyJun 2022 · to Crosstex Services, L.L.C.
- Handed over Lamesa Farms, Dawson CountyAug 2021 · to Crosstex Services, L.L.C.
Use it
Follow this company, or check a paper it sent you
New permits and production
One email a week when Sei Operating, 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 Sei Operating, LLC?
The Railroad Commission lists Sei Operating, LLC as operator number 763302, P-5 active, in Mandeville, LA. Its leases reported 12,637 barrels of oil and 0 mcf of gas in the last twelve months.
Is Sei Operating, LLC a registered business in Texas?
The Comptroller's franchise tax file lists a possible match by name and place: SEI OPERATING, 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 Sei Operating, LLC report?
In the last twelve months the leases Sei Operating, LLC operates reported 12,637 barrels of oil and 0 mcf of gas to the Railroad Commission, through July 1, 2026. It has 5 leases on the state record, 3 with production in that time.
I got a letter or an offer from Sei Operating, 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.