WELL · 42-003-36667 · DISTRICT 8
Cobb Aurelia #27
Andrews County · Andrews N. (Devonian) field · Vertical
Cobb Aurelia #27 (API 42-003-36667) is a well in Andrews County operated by Belco Energy Corp., completed April 28, 1991.
The RRC has issued 3 drilling permits between 1990 and 1991, permitted to 12,600 ft.
It was permitted by Texaco E & P Inc. and has since transferred to Belco Energy Corp. on the wellbore schedule.
Completion filings report 9 formation tops, including Clear Fork, Wolfcamp, Cisco, Canyon.
Its 4 leases have reported 9.45M barrels of oil and 8.41M mcf of gas since January 1993, last reporting in July 2026. The leases carry 112 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Texaco E & P Inc.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jun 7, 2002 · 109 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Belco Energy Corp. |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Texaco E & P Inc.Jun 28, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,600
- total depth, ft
- 3
- permits on file
- Jun 28, 1991
- last permit issued
- Apr 28, 1991
- completed
- 9.45M
- cumulative oil, bbl
- 8.41M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 28, 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 4 leases this well is completed on; they carry 112 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Andrews Unit O-10-34968 | Andrews (Wolfcamp-Penn.) | Hilcorp Energy Company | 97 | 9.38M | 8.35M | Jul 1996 – Jul 2026 |
| Cobb, Aurelia O-10-14902 | Andrews, N. (Devonian) | Belco Energy Corp. | 3 | 541 | 0 | Jan 1993 – May 2000 |
| Cobb, Aurelia O-10-34680 | Andrews (Wolfcamp-Penn.) | Coda Energy, Inc. | 6 | 22.1K | 24.6K | Oct 1995 – Oct 1996 |
| Cobb, Aurelia O-10-277 | Andrews (Wolfcamp) | Coda Energy, Inc. | 6 | 40.2K | 37.5K | Jan 1993 – Dec 1995 |
Oil, barrels lease total
Last 12 months 206,605 · prior 12 185,593(+11%)
Gas, mcf lease total
Last 12 months 175,944 · prior 12 151,290(+16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Dec 1994
- 2Coda Energy, Inc.Jan 1995 → Aug 1998
- 3Belco Energy Corp.Sep 1998 → Feb 2002
- 4Westport Oil and Gas Company, LPMar 2002 → Feb 2006
- 5Kerr-McGee Oil & Gas Onshore LPMar 2006 → May 2007
- 6Apache CorporationJun 2007 → Nov 2024
- 7Hilcorp Energy CompanyDec 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388544-99 | Recompletion | Texaco E & P Inc. | Jun 3, 1991 | Jun 28, 1991 | Jul 11, 1991 | 12,575 |
| 386097-99 | Recompletion | Texaco E & P Inc. | Mar 25, 1991 | Mar 29, 1991 | Mar 20, 1991 | 12,575 |
| 369910-99 | Drill | Texaco Inc. | Feb 15, 1990 | Feb 12, 1990 | Apr 26, 1990 | 12,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-277 | — | — | — | — |
| — | — O-10-14902 | — | — | — | — |
| — | — O-10-34680 | — | — | — | — |
| — | — O-10-34968 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,186 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear Fork | 6,097 | -2,911 |
| Wolfcamp | 8,750 | -5,564 |
| Wolfcamp | 8,820 | -5,634 |
| Cisco | 9,030 | -5,844 |
| Canyon | 9,160 | -5,974 |
| Strawn | 9,450 | -6,264 |
| Atoka | 9,760 | -6,574 |
| Mississippian | 10,026 | -6,840 |
| Devonian | 10,507 | -7,321 |
| Ellenburger | 12,006 | -8,820 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,580 | 8,846 | Perforated |
| 8,580 | 10,550 | Perforated |
| 8,584 | 8,592 | Perforated |
| 8,624 | 8,641 | Perforated |
| 8,659 | 8,680 | Perforated |
| 8,820 | 8,830 | Perforated |
| 10,520 | 10,550 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,940 | 17.5 | 2,500 S |
| 9.625 | 5,750 | 12.25 | 2,100 S |
| 5.5 | 12,575 | 8.75 | 2,450 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 6, 2019 | Oct 24, 2018 | — |
| 00 | Jul 16, 1996 | Sep 18, 1991 | Yes |
| 00 | Oct 25, 1995 | Sep 18, 1991 | Yes |
| 00 | Nov 7, 1991 | Sep 18, 1991 | Yes |
| 00 | Jun 5, 1991 | May 13, 1991 | Yes |
| 00 | May 24, 1991 | Oct 10, 1990 | Yes |
| 00 | Nov 26, 1990 | Oct 10, 1990 | Yes |
| 00 | Nov 8, 1990 | — | — |
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 42-003-36667 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-36667 → 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/00336667, documented in the API reference.