Texas operator · P-5 139609
Castex Energy, Inc.
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Castex Energy, Inc.
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
- CASTEX ENERGY, INC.
- Operator number (P-5)
- 139609
- P-5 status
- Active
- Organization type
- Corporation
- Location
- Houston, TX
- Mailing city
- Houston, TX
- Activities filed
- Gas Operator
- Last P-5 received
- December 9, 2025
- Record built
- February 11, 1988
- Inactive since
- January 31, 2000
- Refiling required
- Yes
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Owner relations
How to reach Castex Energy, Inc. as an owner
Not checked yet
We have not checked Castex Energy, Inc.’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
- CASTEX ENERGY, INC.
- Taxpayer number
- 17602317954
- Entity type
- Texas profit corporation
- Secretary of State file number
- 0103459400
- Secretary of State status
- Active (April 9, 1987)
- Right to transact business in Texas
- Active
- Formed
- April 9, 1987
- Formed in
- TX
- Mailing city
- Houston, 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 0103459400), Comptroller account status.
Production
What the state's reports show
- Oil, last 12 months
- 174 barrels
- Down 97.1% from the 12 months before
- Gas, last 12 months
- 9,709 mcf
- Down 95.3% from the 12 months before
Oil reported each month, in barrels
- Jul 20260
- Jun 20260
- May 20260
- Apr 20260
- Mar 20260
- Feb 20260
- Jan 20261
- Dec 20250
- Nov 20250
- Oct 20254
- Sep 202592
- Aug 202577
Source: Railroad Commission of Texas, production data query, as of July 1, 2026.
Drilling permits
Permits filed with the state
1 drilling permits in the last three years: 1 in 2024. A permit is permission to drill. It is not a well.
| Issued | Lease, county and type |
|---|---|
| 2024-01-29 | SUSAN B. MICHALSKY ET AL #1Harris County · Vertical |
Source: Railroad Commission of Texas, drilling permit records.
Leases
Leases this company operates
2 leases on the state record, 0 with production in the last twelve months. The largest by production:
Use it
Follow this company, or check a paper it sent you
New permits and production
One email a week when Castex Energy, Inc. 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 Castex Energy, Inc.?
The Railroad Commission lists Castex Energy, Inc. as operator number 139609, P-5 active, in Houston, TX. Its leases reported 174 barrels of oil and 9,709 mcf of gas in the last twelve months.
Is Castex Energy, Inc. a registered business in Texas?
The Comptroller's franchise tax file lists a business entity that matches the company: CASTEX ENERGY, INC., a texas profit corporation, Secretary of State status Active, right to transact business in Texas: Active. Confirm it in the Secretary of State's business search.
How much oil and gas did Castex Energy, Inc. report?
In the last twelve months the leases Castex Energy, Inc. operates reported 174 barrels of oil and 9,709 mcf of gas to the Railroad Commission, through July 1, 2026. It has 2 leases on the state record, 0 with production in that time.
How many drilling permits has Castex Energy, Inc. filed?
1 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 Castex Energy, Inc.: 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.