WELL · 42-495-30340 · DISTRICT 8
East Keystone Unit #911H
Winkler County · Horizontal
East Keystone Unit #911H (API 42-495-30340) is a permitted horizontal well in Winkler County filed by Cimarex Energy CO.; no completion report is on file yet.
The RRC has issued 2 drilling permits between 1996 and 2011, permitted to 5,600 ft.
Completion filings report 3 formation tops, including Yates, Queen, San Andres.
Its 3 leases have reported 1.6M barrels of oil and 1.99M mcf of gas since January 1993, last reporting in July 2026. The leases carry 160 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Jul 8, 2025
- Permits on file
- 2,082
- Phone
- (432) 571-7800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Formentera Operations LLCthrough Apr 2026 |
| Latest permit | Cimarex Energy Co.May 3, 2011 |
- 5,600
- total depth, ft
- 2
- permits on file
- May 3, 2011
- last permit issued
- —
- completed
- 1.6M
- cumulative oil, bbl
- 1.99M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
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 3 leases this well is completed on; they carry 160 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| East Keystone (San a Holt Unit) O-10-46985 | Keystone (Consolidated) | Formentera Operations LLC | 76 | 264K | 109K | Sep 2015 – Jul 2026 |
| East Keystone(san a Holt Unit) O-10-36780 | Keystone (Holt) | Merit Energy Company | 81 | 1.29M | 1.81M | Jan 2002 – Dec 2015 |
| Taylor, Mack O-10-23507 | Keystone (San Andres) | Gruy Petroleum Management Co. | 3 | 45K | 68.5K | Jan 1993 – Apr 2002 |
Oil, barrels lease total
Last 12 months 6,968 · prior 12 7,996(-13%)
Gas, mcf lease total
Last 12 months 2,310 · prior 12 1,854(+25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Feb 1995
- 2Apache CorporationMar 1995 → Apr 1999
- 3Scythian, Ltd.May 1999 → Dec 2000
- 4Prize Operating CompanyJan 2001 → Mar 2002
- 5Gruy Petroleum Management Co.Apr 2002 → Apr 2006
- 6Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012
- 7Merit Energy CompanyJan 2013 → Nov 2016
- 8Blackbeard Operating, LLCDec 2016 → May 2021
- 9Saddleback Exploration, LLCJun 2021 → Apr 2024
- 10Formentera Operations LLCMay 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 714783-99 | Recompletion | Cimarex Energy Co. | Apr 21, 2011 | May 3, 2011 | — | 4,900 |
| 443827-99 | Recompletion | Apache Corporation | Jan 18, 1996 | Jan 18, 1996 | Feb 14, 1996 | 5,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-23507 | — | — | — | — |
| — | — O-10-36780 | — | — | — | — |
| — | — O-10-46985 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,994 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,742 | 252 |
| Queen | 3,542 | -548 |
| San Andres | 4,180 | -1,186 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,501 | 4,771 | Perforated |
| 4,501 | 5,450 | Perforated |
| — | 4,771 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 859 | 12.25 | 500 S |
| 8.625 | 860 | 12.25 | 500 S |
| 5.5 | 4,849 | 7.625 | 1,625 S |
| 5.5 | 4,849 | 7.875 | 1,625 S |
| 4.75 | 5,450 | — | — |
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 | Nov 4, 2015 | May 15, 2012 | — |
| 00 | Jun 13, 2013 | May 15, 2012 | — |
| 00 | Jan 24, 2002 | Apr 10, 1996 | Yes |
| 00 | Jun 26, 1996 | Apr 10, 1996 | Yes |
| 00 | Jan 12, 1984 | May 23, 1975 | — |
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 42-495-30340 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-30340 → 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/49530340, documented in the API reference.