Texas operator and buyer · P-5 589954
Mortimer Production Company
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Mortimer Production Company
Railroad Commission record
Who the state lists
The Railroad Commission lists this company as an operator, and the state's records list it as a purchaser or gatherer.
- Name on file
- MORTIMER PRODUCTION COMPANY
- Operator number (P-5)
- 589954
- P-5 status
- Active
- Organization type
- Corporation
- Location
- San Antonio, TX
- Mailing city
- San Antonio, TX
- Activities filed
- Casinghead Gas Gatherer, Casinghead Gas Purchaser, Gas Purchaser, Gas Gatherer, Gas Operator, Oil Operator
- Last P-5 received
- September 9, 2026
- Record built
- September 18, 2003
- Refiling required
- Yes
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Owner relations
How to reach Mortimer Production Company as an owner
Not checked yet
We have not checked Mortimer Production Company’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
- MORTIMER PRODUCTION COMPANY
- Taxpayer number
- 11136942627
- Entity type
- Texas profit corporation
- Secretary of State file number
- 0800207132
- Secretary of State status
- Active (May 23, 2003)
- Right to transact business in Texas
- Active
- Formed
- May 23, 2003
- Formed in
- TX
- Mailing city
- San Antonio, 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 0800207132), Comptroller account status.
Production
What the state's reports show
- Oil, last 12 months
- 65,253 barrels
- Down 22.4% from the 12 months before
- Gas, last 12 months
- 411,112 mcf
- Down 8.3% from the 12 months before
Oil reported each month, in barrels
- Jul 20264,925
- Jun 20264,592
- May 20265,183
- Apr 20265,186
- Mar 20265,434
- Feb 20264,877
- Jan 20265,539
- Dec 20255,808
- Nov 20255,526
- Oct 20255,989
- Sep 20255,947
- Aug 20256,247
Source: Railroad Commission of Texas, production data query, as of July 1, 2026.
Drilling permits
Permits filed with the state
2 drilling permits in the last three years: 1 in 2023, 1 in 2024. A permit is permission to drill. It is not a well.
| Issued | Lease, county and type |
|---|---|
| 2024-06-14 | DORCHESTER MINERALS #2Starr County · Vertical |
| 2023-11-02 | DORCHESTER MINERALS #1Starr County · Vertical |
Source: Railroad Commission of Texas, drilling permit records.
Leases
Leases this company operates
52 leases on the state record, 36 with production in the last twelve months. The largest by production:
- Plains CapitalStarr County · 25,127 bbl of oil
- Gutierrez No. 3Starr County · 14,913 bbl of oil
- Ignacia GutierrezStarr County · 10,754 bbl of oil
- Gutierrez No. 1Starr County · 7,085 bbl of oil
- LagoStarr County · 5,239 bbl of oil
- Walker, Billy L.Starr County · 7 bbl of oil
- Wood/WardnerStarr County · 90 bbl of oil
- Margo/PenaStarr County · 55 bbl of oil
- Walker, Billy L.Starr County · 25,461 mcf of gas
- Walker, Billy LStarr County · 28 bbl of oil
- El PatonZapata County · 424 bbl of oil
- GuerraStarr County · 24 bbl of oil
- Wood-WardnerStarr County · 71 bbl of oil
- Schenkel/TurneyEdwards County · 822 bbl of oil
- Bowers TrustZapata County · 18,737 mcf of gas
- GarzaStarr County · 18 bbl of oil
- Guerra, R.r.Starr County · 12,300 mcf of gas
- Bowers TrustZapata County · 186 bbl of oil
- GuerraStarr County · 11,938 mcf of gas
- Block/GuerraStarr County · 3 bbl of oil
- Sue FullerStarr County · 105 bbl of oil
- Block-GuerraStarr County · 11,504 mcf of gas
- Ringgold Farms 1Starr County · 9,827 mcf of gas
- Margo/PenaStarr County · 122 bbl of oil
- Lopez, J. G.Jim Hogg County · 40 bbl of oil
Operator changes
Leases this company took over or handed over
0 taken over and 8 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 W. F. Green III, Matagorda CountyOct 2020 · to Trinidad Resources, LLC
- Handed over Share 91, Starr CountyAug 2020 · to Tag Operating Company, Inc.
- Handed over Texaco Fee- Guerra "A", Starr CountyAug 2020 · to Tag Operating Company, Inc.
- Handed over Garcia, Salvador, Zapata CountyJul 2020 · to Tag Operating Company, Inc.
- Handed over Garcia, Salvador "G", Zapata CountyJul 2020 · to Tag Operating Company, Inc.
- Handed over Texaco-Fee Guerra G, Starr CountyJul 2020 · to Tag Operating Company, Inc.
- Handed over Garcia, Salvador "G", Zapata CountyJul 2020 · to Tag Operating Company, Inc.
- Handed over Texaco Fee Guerra "G", Starr CountyJul 2020 · to Tag Operating Company, Inc.
Use it
Follow this company, or check a paper it sent you
New permits and production
One email a week when Mortimer Production Company 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 Mortimer Production Company?
The Railroad Commission lists Mortimer Production Company as operator number 589954, P-5 active, in San Antonio, TX. Its leases reported 65,253 barrels of oil and 411,112 mcf of gas in the last twelve months. The state's records also list it as a purchaser or gatherer.
Is Mortimer Production Company a registered business in Texas?
The Comptroller's franchise tax file lists a business entity that matches the company: MORTIMER PRODUCTION COMPANY, 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 Mortimer Production Company report?
In the last twelve months the leases Mortimer Production Company operates reported 65,253 barrels of oil and 411,112 mcf of gas to the Railroad Commission, through July 1, 2026. It has 52 leases on the state record, 36 with production in that time.
How many drilling permits has Mortimer Production Company filed?
2 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 Mortimer Production Company: 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.