Texas buyer · P-5 526429
Markwest Oklahoma Gas Co, L.L.C.
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Markwest Oklahoma Gas Co, L.L.C.
Railroad Commission record
Who the state lists
The state's records list this company as a purchaser or gatherer of Texas oil or gas.
- Name on file
- MARKWEST OKLAHOMA GAS CO, L.L.C.
- Operator number (P-5)
- 526429
- P-5 status
- Active
- Organization type
- Corporation
- Location
- Findlay, OH
- Mailing city
- Findlay, OH
- Activities filed
- Casinghead Gas Gatherer, Casinghead Gas Purchaser, Gas Purchaser, Gas Gatherer
- Last P-5 received
- December 10, 2025
- Record built
- December 31, 2008
- Inactive since
- November 30, 2009
- Refiling required
- Yes
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Owner relations
How to reach Markwest Oklahoma Gas Co, L.L.C. as an owner
Not checked yet
We have not checked Markwest Oklahoma Gas Co, L.L.C.’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
The business entity on file
- Legal name
- MARKWEST OKLAHOMA GAS COMPANY, L.L.C.
- Taxpayer number
- 32037801142
- Entity type
- Foreign limited liability company
- Secretary of State file number
- 0801020615
- Secretary of State status
- Active (August 22, 2008)
- Right to transact business in Texas
- Active
- Formed
- August 22, 2008
- Formed in
- Outside Texas (the file does not say where)
- Mailing city
- Findlay, OH
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 0801020615), Comptroller account status.
Production
What the state's reports show
No production is reported for leases this company operates in the last twelve months.
Source: Railroad Commission of Texas, production data query.
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.
Use it
Follow this company, or check a paper it sent you
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 Markwest Oklahoma Gas Co, L.L.C.?
The Railroad Commission lists Markwest Oklahoma Gas Co, L.L.C. as purchaser number 526429, P-5 active, in Findlay, OH.
Is Markwest Oklahoma Gas Co, L.L.C. a registered business in Texas?
The Comptroller's franchise tax file lists a business entity that matches the company: MARKWEST OKLAHOMA GAS COMPANY, L.L.C., a foreign limited liability company, Secretary of State status Active, right to transact business in Texas: Active. Confirm it in the Secretary of State's business search.
I got a letter or an offer from Markwest Oklahoma Gas Co, L.L.C.: 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.