Texas operator and buyer · P-5 153438
Cimarex Energy Co.
Facts and their sources. No rating, no opinion.
The record
What the state's files show about Cimarex Energy Co.
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
- CIMAREX ENERGY CO.
- Operator number (P-5)
- 153438
- P-5 status
- Delinquent
- Organization type
- Corporation
- Location
- Midland, TX
- Mailing city
- Midland, TX
- Activities filed
- Gas Purchaser, Gas Gatherer
- Last P-5 received
- July 8, 2025
- Record built
- September 17, 2002
- Refiling required
- Yes
The Railroad Commission lists this company’s P-5 registration as delinquent; its last P-5 filing was on July 8, 2025. If your royalty checks from it stopped, check your lease for the likely reasons and who to write to.
Source: Railroad Commission of Texas, P-5 Organization Report data set, as of September 22, 2026.
Owner relations
How to reach Cimarex Energy Co. as an owner
Our record says this company is now Devon Energy Corporation. Owners with wells that passed to it write to that company.
Not checked yet
We have not checked Cimarex Energy Co.’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.
Name changes and sales
Cimarex Energy Co. is now Devon Energy Corporation
Bought in 2026, with the source for each step below. The Railroad Commission lists its P-5 registration as inactive.
CIMAREX ENERGY CO.
FormerlyRailroad Commission no. 153438
Bought · May 7, 2026
CIMAREX ENERGY CO. was bought by Devon Energy Corporation. On May 7, 2026, following approval by the stockholders of both Devon and Coterra at special meetings held on May 4, 2026, the Merger and the other transactions contemplated by the Merger Agreement were consummated.
Source: Operator company map evidence
Devon Energy Corporation
NowP-5 InactiveRailroad Commission no. 216772
Production
What the state's reports show
- Oil, last 12 months
- 33,305,262 barrels
- Down 1.2% from the 12 months before
- Gas, last 12 months
- 318,871,053 mcf
- Up 5.5% from the 12 months before
Oil reported each month, in barrels
- Oct 20252,786,663
- Sep 20252,790,747
- Aug 20253,037,015
- Jul 20253,148,700
- Jun 20252,811,593
- May 20252,859,298
- Apr 20252,785,538
- Mar 20253,052,305
- Feb 20252,302,636
- Jan 20252,523,245
- Dec 20242,528,761
- Nov 20242,678,761
Source: Railroad Commission of Texas, production data query, as of October 1, 2025.
Drilling permits
Permits filed with the state
137 drilling permits in the last three years: 10 in 2023, 98 in 2024, 29 in 2025. A permit is permission to drill. It is not a well.
| Issued | Lease, county and type |
|---|---|
| 2025-05-15 | TOMY LEE 20-29 I #9HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 J #10HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 H #8HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 G #7HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 F #6HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 E #5HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 D #4HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 B #2HCulberson County · Horizontal |
| 2025-05-08 | TOMY LEE 20-29 A #1HCulberson County · Horizontal |
| 2025-04-10 | CASTLE #403UReeves County · Horizontal |
Source: Railroad Commission of Texas, drilling permit records.
Leases
Leases this company operates
26 leases on the state record, 0 with production in the last twelve months. The largest by production:
- LT. Gibson 12 StateCulberson County · 633 bbl of oil
- Seattle Slew 42 State UnitCulberson County · 328 bbl of oil
- Arvine 28Culberson County · 11 bbl of oil
- Prewit Omaha 26 UnitCulberson County · 109 bbl of oil
- Seattle Slew 42 State UnitCulberson County · 10 bbl of oil
- Seattle Slew 42 State UnitCulberson County · 9 bbl of oil
- Dixieland 10Reeves County · 2 bbl of oil
- Seattle Slew 42 State UnitCulberson County · 1 bbl of oil
- Lookout 18 FeeCulberson County · 10 mcf of gas
- SieversReeves County · nothing reported in 12 months
- Cabinet State 55-2 UnitReeves County · nothing reported in 12 months
- Foolish Pleasure "6" FeeCulberson County · nothing reported in 12 months
- HuffHemphill County · nothing reported in 12 months
- Hobart RanchHemphill County · nothing reported in 12 months
- Ferdinand 27 UnitCulberson County · nothing reported in 12 months
- Hobart RanchHemphill County · nothing reported in 12 months
- Tim Tam 24 BCulberson County · nothing reported in 12 months
- Culberson A FeeCulberson County · nothing reported in 12 months
- Sebring 60-1-47Culberson County · nothing reported in 12 months
- Gallant Fox 37 Unit BBrewster County · nothing reported in 12 months
- Pythian 6Reeves County · nothing reported in 12 months
- Spectacular Bid 22 State UnitCulberson County · nothing reported in 12 months
- Donerail 8 StateCulberson County · nothing reported in 12 months
- Seattle Slew 42 State UnitCulberson County · nothing reported in 12 months
- Barbaro 23 UnitCulberson County · nothing reported in 12 months
Operator changes
Leases this company took over or handed over
0 taken over and 879 handed over since the state's history begins; 0 and 715 in the last twelve months. The month is the first month the change shows in production reports.
- Handed over Red Lodge C20-11 E, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Needles 39 Unit, Culberson CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Silverton State 27-34 Unit E, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Sentinel State 55-28 Unit, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Huckleberry C21-9 Unit, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Wolverine State 55-1 Unit D, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Count Fleet 48 State H, Culberson CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Smarty Jones 42 State Unit, Culberson CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Wolverine State 55-1 Unit C, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Riva Ridge 10 Fee, Culberson CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Ruby South Unit 1-39, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
- Handed over Wolverine State 55-1 Unit B, Reeves CountyNov 2025 · to Coterra Energy Operating Co.
Public company
Filings that name this operator
- Coterra Energy Inc. (CTRA) lists this company as a subsidiary in its filing with the SEC. Read the filing
- Devon Energy Corporation (DVN) says in its filing with the SEC that it acquired this company. Read the filing
Use it
Follow this company, or check a paper it sent you
New permits and production
One email a week when Cimarex Energy Co. 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 Cimarex Energy Co.?
The Railroad Commission lists Cimarex Energy Co. as operator number 153438, P-5 delinquent, in Midland, TX. Its leases reported 33,305,262 barrels of oil and 318,871,053 mcf of gas in the last twelve months. The state's records also list it as a purchaser or gatherer.
How much oil and gas did Cimarex Energy Co. report?
In the last twelve months the leases Cimarex Energy Co. operates reported 33,305,262 barrels of oil and 318,871,053 mcf of gas to the Railroad Commission, through October 1, 2025. It has 26 leases on the state record, 0 with production in that time.
How many drilling permits has Cimarex Energy Co. filed?
137 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 Cimarex Energy Co.: 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.