WELL · 42-279-30360 · DISTRICT 8
Lancaster #597
Lamb County · Anton-Irish (Wolfcamp) field · Horizontal · Directional · Sidetrack
Lancaster #597 (API 42-279-30360) is a horizontal well in Lamb County operated by White Rock Oil & Gas LLC, completed September 16, 2009.
The RRC has issued 3 drilling permits between 2002 and 2010, permitted to 7,500 ft.
It was permitted by Occidental Permian Ltd. and has since transferred to White Rock Oil & Gas LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Rustler, Yates, San Andres, Glorieta.
Its 3 leases have reported 68M barrels of oil and 35.1M mcf of gas since January 1993, last reporting in July 2026. The leases carry 597 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Occidental Permian Ltd.; the EWA schedule now lists a different operator.
Plano, TX · P-5 Y, filed Jun 4, 2026 · 31 permits on file · (972) 816-1171
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | White Rock Oil & Gas LLC |
| Production reports | White Rock Oil & Gas, LLCthrough Apr 2026 |
| Latest permit | Occidental Permian Ltd.Dec 6, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,500
- total depth, ft
- 3
- permits on file
- Dec 6, 2010
- last permit issued
- Sep 16, 2009
- completed
- 68M
- cumulative oil, bbl
- 35.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 16, 2009
- 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 597 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Anton-Irish Clearfork Unit O-11-304 | Anton-Irish | Occidental Permian Ltd. | 591 | 66.1M | 34.9M | Jan 1993 – Jul 2026 |
| Lancaster O-11-68392 | Anton-Irish (Wolfcamp) | White Rock Oil & Gas, LLC | 5 | 1.89M | 237K | Jan 2002 – Jul 2026 |
| Lancaster O-11-69606 | Anton-Irish (Wolfcamp) | Occidental Permian Ltd. | 1 | 0 | 0 | Feb 2010 – May 2011 |
Oil, barrels lease total
Last 12 months 881,760 · prior 12 921,219(-4%)
Gas, mcf lease total
Last 12 months 1,804,427 · prior 12 1,781,802(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Amoco Production CompanyJan 1993 → Feb 1997
- 2Altura Energy Ltd.Mar 1997 → Apr 2000
- 3Occidental Permian Ltd.May 2000 → Apr 2026
- 4Devon SFS Operating, Inc.Jan 2002 → Oct 2002
- 5Devon Energy Production Co, L.P.Nov 2002 → Dec 2018
- 6White Rock Oil & Gas, LLCJan 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 706250-99 | Recompletion | Occidental Permian Ltd. | Dec 2, 2010 | Dec 6, 2010 | Dec 6, 2010 | 6,200 |
| 523819-99 | Recompletion · sidetrack | Devon SFS Operating, Inc. | Sep 11, 2002 | Sep 11, 2002 | Sep 20, 2002 | 6,888 |
| 519758-99 | Drill | Devon SFS Operating, Inc. | May 7, 2002 | May 7, 2002 | May 27, 2002 | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-304 | — | — | — | — |
| — | — O-11-68392 | — | — | — | — |
| — | — O-11-68392 | — | — | — | — |
| — | — O-11-69606 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,467 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,628 | 1,839 |
| Yates | 1,976 | 1,491 |
| San Andres | 3,009 | 458 |
| Glorieta | 4,263 | -796 |
| Clear ForkCLEARFORK | 4,656 | -1,189 |
| Tubb | 5,191 | -1,724 |
| Wolfcamp | 6,018 | -2,551 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,812 | 5,965 | Perforated |
| 6,674 | 6,830 | Open hole |
| 7,073 | 7,243 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,694 | 13.5 | 1,030 S |
| 9.25 | 1,694 | 13.5 | 1,030 S |
| 7 | 6,674 | 8.75 | 60 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 | May 16, 2011 | Feb 15, 2011 | — |
| 00 | Nov 29, 2010 | Nov 12, 2009 | — |
| 00 | Apr 22, 2010 | Nov 12, 2009 | — |
| 00 | Feb 14, 2003 | Nov 12, 2002 | Yes |
| 00 | Dec 12, 2002 | — | — |
| 00 | Oct 31, 2002 | Aug 22, 2002 | Yes |
| 00 | Oct 4, 2002 | — | — |
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 42-279-30360 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-279-30360 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/27930360, documented in the API reference.