WELL · 42-103-34138 · DISTRICT 8
Atapco Devonian Unit #12
Crane County · Atapco (Devonian) field · Producing · Vertical
Atapco Devonian Unit #12 (API 42-103-34138) is a well in Crane County operated by Olsen Energy Inc., completed August 16, 1991 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 24, 1991, permitted to 6,000 ft.
It was permitted by Kerr-Mcgee Corporation and has since transferred to Olsen Energy Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Queen, Grayburg, Wichita-Albany, Devonian.
Its lease has reported 871K barrels of oil and 367K mcf of gas since January 1993, last reporting in July 2026. The lease carries 20 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Kerr-McGee Corporation; the EWA schedule now lists a different operator.
- Based in
- Boerne, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 26, 2026
- Permits on file
- 243
- Phone
- (210) 496-2466
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Olsen Energy Inc. |
| Production reports | Olsen Energy Inc.through Apr 2026 |
| Latest permit | Kerr-McGee CorporationMay 24, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 2
- permits on file
- May 24, 1991
- last permit issued
- Aug 16, 1991
- completed
- 871K
- cumulative oil, bbl
- 367K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 16, 1991
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 20 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Atapco Devonian Unit O-10-33136 | Atapco (Devonian) | Olsen Energy Inc. | 20 | 871K | 367K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 8,354 · prior 12 6,120(+37%)
Gas, mcf lease total
Last 12 months 38 · prior 12 1,779(-98%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Kerr-McGee CorporationJan 1993 → Jul 1996
- 2Mei Operating CompanyAug 1996 → Aug 1997
- 3First Reserve Oil & Gas CoSep 1997 → Apr 2000
- 4Aries Operating, LLCMay 2000 → Aug 2003
- 5Aries Operating, LPSep 2003 → Feb 2010
- 6Delek Energy Systems US, Inc.Mar 2010 → Feb 2011
- 7Trinity Bay Oil & Gas, Inc.Mar 2011 → Jan 2016
- 8Endeavor Energy Resources L.P.Apr 2016 → Nov 2023
- 9Silver Cross Energy Partners LLCDec 2023 → Dec 2024
- 10Olsen Energy Inc.Jan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388184-98 | Drill | Kerr-McGee Corporation | Jul 18, 1991 | May 24, 1991 | Jul 26, 1991 | 6,000 |
| 388184-99 | Drill | Kerr-McGee Corporation | May 22, 1991 | May 24, 1991 | — | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-33136 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,395 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 2,086 | 309 |
| Grayburg | 2,326 | 69 |
| Wichita-AlbanyWICHITA ALBANY | 4,644 | -2,249 |
| Devonian | 5,438 | -3,043 |
| Silurian (undifferentiated)SILURIAN SHALE | 5,514 | -3,119 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,441 | 5,489 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 650 | 12.25 | 360 S |
| 5.5 | 5,580 | 7.875 | 2,000 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 | Sep 23, 1991 | Aug 28, 1991 | Yes |
| 00 | Sep 6, 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 42-103-34138 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-34138 → 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/10334138, documented in the API reference.