WELL · 42-135-36412 · DISTRICT 8
Ratliff F #1
Ector County · Ratliff (Ellenburger) field · Vertical
Ratliff F #1 (API 42-135-36412) is a well in Ector County operated by Eureka Prospecting Company, completed June 19, 1991.
The RRC has issued 2 drilling permits between 1991 and 2016, permitted to 13,650 ft.
Completion filings report 14 formation tops, including Yates, San Andres, Wolfcamp, Canyon.
Its 2 leases have reported 115K barrels of oil and 336K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 200 barrels injected in the 12 months reported through October 2025.
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 | Eureka Prospecting Company |
| Production reports | Eureka Prospecting Companythrough Sep 2021 |
| Latest permit | Eureka Prospecting CompanyAug 12, 2016 |
- 13,650
- total depth, ft
- 2
- permits on file
- Aug 12, 2016
- last permit issued
- Jun 19, 1991
- completed
- 115K
- cumulative oil, bbl
- 336K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 19, 1991
- 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 2 leases 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 'F' O-10-49543 | Headlee, N. (Canyon) | Slant Operating, LLC | 1 | 1.59K | 2.16K | Jan 2017 – Jul 2026 |
| Ratliff "F" O-10-33223 | Ratliff (Ellenburger) | Eureka Prospecting Company | 1 | 114K | 334K | Jan 1993 – Mar 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.
- 1Antelope Production Co.Jan 1993 → Aug 1995
- 2Antelope Energy Company, LLCSep 1995 → Jul 2013
- 3Eureka Prospecting CompanyFeb 2017 → Sep 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 817535-99 | Recompletion | Eureka Prospecting Company | Aug 4, 2016 | Aug 12, 2016 | — | 13,645 |
| 384086-99 | Drill | Antelope Production Co. | Jan 31, 1991 | Jan 31, 1991 | Feb 5, 1991 | 13,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-33223 | — | — | — | — |
| — | — O-10-49543 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,000 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,096 | -96 |
| YatesYATES SAND | 3,096 | -96 |
| San AndresSAN ANDRES DOLOMITE | 4,898 | -1,898 |
| WolfcampWOLFCAMP LIME | 8,920 | -5,920 |
| Canyon | 9,988 | -6,988 |
| CanyonCANYON LIME | 9,988 | -6,988 |
| CanyonCANYON LIME | 9,998 | -6,998 |
| Devonian | 11,778 | -8,778 |
| DevonianDEVONIAN DOLOMITE | 11,778 | -8,778 |
| EllenburgerELLENBURGER DOLOMITE | 13,516 | -10,516 |
| Clear ForkCLEARFORK | — | — |
| Glorieta | — | — |
| Grayburg | — | — |
| Holt | — | — |
| Queen | — | — |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | — | — |
| Santa RosaSANTA ROSA BASE | — | — |
| Seven Rivers | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,290 | 5,410 | Perforated |
| 6,600 | 6,860 | Perforated |
| 10,006 | 10,036 | Perforated |
| 12,039 | 12,162 | Perforated |
| 13,516 | 13,524 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 475 | 17.5 | 475 S |
| 8.625 | 5,698 | 12.25 | 2,740 S |
| 5.5 | 12,690 | 7.875 | 519 S |
| 5.5 | 13,645 | 7.875 | 650 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 | Mar 4, 2025 | Nov 7, 2024 | — |
| 00 | Jun 7, 2024 | Mar 28, 2024 | — |
| 00 | Feb 20, 2024 | Nov 20, 2023 | — |
| 00 | Mar 16, 2018 | Jul 27, 2017 | Yes |
| 00 | Sep 10, 1991 | Jul 11, 1991 | Yes |
| 00 | Jul 25, 1991 | — | — |
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 42-135-36412 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-36412 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 200
- bbl, last 12 reported months
- 1.68M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000113121 | W-14 Disposal | Active | 10,000 | 2,645 | 5,290–7,190 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 200 · prior 12 1,679,649(-100%)
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/13536412, documented in the API reference.