WELL · 42-135-36965 · DISTRICT 8
Ratliff "J" #1
Ector County · Horizontal
Ratliff "J" #1 (API 42-135-36965) is a permitted horizontal well in Ector County filed by Eureka Prospecting Company; no completion report is on file yet.
The RRC has issued 2 drilling permits (amended once) between 1994 and 1996, permitted to 16,130 ft.
Completion filings report 6 formation tops, including Rustler, Yates, San Andres, Spraberry.
Its lease has reported 9.19K barrels of oil and 34.9K mcf of gas since December 1994, last reporting in April 2018. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Wimberley, TX · P-5 Y, filed Oct 4, 2025 · 51 permits on file · (512) 847-6066
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | COG Operating LLCthrough May 2016 |
| Latest permit | Eureka Prospecting CompanyAug 21, 1996 |
- 16,130
- total depth, ft
- 3
- permits on file
- Aug 21, 1996
- last permit issued
- —
- completed
- 9.19K
- cumulative oil, bbl
- 34.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1994 THROUGH Apr 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ratliff "J" O-10-34723 | Headlee, N. (Devonian) | COG Operating LLC | 2 | 9.19K | 34.9K | Dec 1994 – Apr 2018 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Amoco Production CompanyDec 1994 → Dec 1994
- 2Antelope Production Co.Sep 1995 → Sep 1995
- 3Antelope Energy Company, LLCOct 1995 → Jul 1996
- 4Eureka Prospecting CompanyAug 1996 → Feb 1998
- 5Union Pacific Resources CompanyMar 1998 → Nov 1998
- 6COG Operating LLCMay 2016 → May 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 451720-99 | Recompletion | Eureka Prospecting Company | Aug 20, 1996 | Aug 21, 1996 | — | 12,273 |
| 425630-98 | Drill | Antelope Production Co. | May 30, 1995 | Jul 7, 1994 | — | 16,130 |
| 425630-99 | Drill | Amoco Production Company | Jul 7, 1994 | Jul 7, 1994 | Jul 17, 1994 | 12,273 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-34723 | — | — | — | — |
| — | — O-10-34723 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,029 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,015 | 16,130 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 375 | 20 | 430 S |
| 10.75 | 5,487 | 14.75 | 2,805 S |
| 7.375 | 12,015 | 7.625 | 1,200 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 21, 1995 | Oct 20, 1995 | Yes |
| 00 | Nov 7, 1995 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-135-36965 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-36965 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/13536965, documented in the API reference.