WELL · 42-371-34152 · DISTRICT 8
Zapalac #1
Pecos County · Valentine (Glorieta) field · Vertical
Zapalac #1 (API 42-371-34152) is a plugged well in Pecos County, plugged July 23, 2010, last operated by Oxy USA Inc..
The RRC has issued 2 drilling permits between 1982 and 1996, permitted to 4,300 ft.
It was permitted by Odessa Exploration, Inc. and has since transferred to Oxy USA Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including San Andres, Glorieta, Clear Fork, Tubb.
Operator of record
Permitted by Odessa Exploration, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 4, 2025 · 3,316 permits on file · (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | OXY USA Inc. |
| Production reports | OXY USA Inc.through Nov 2008 |
| Latest permit | Odessa Exploration, Inc.Feb 27, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,300
- total depth, ft
- 2
- permits on file
- Feb 27, 1996
- last permit issued
- Mar 21, 1983
- completed
- 0
- cumulative oil, bbl
- 721K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 21, 1983
- Shut in
- —
- Plugged
- Jul 23, 2010
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 |
|---|---|---|---|---|---|---|
| Lahodny G-10-157544 | Abell, Northwest (Clear Fork) | OXY USA Inc. | 1 | 0 | 721K | Feb 1996 – Dec 2010 |
| Zapalac G-10-116739 | Valentine (Glorieta) | OXY USA Inc. | 1 | 0 | 0 | Jan 1993 – Jul 2010 |
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.
- 1Odessa Exploration, Inc.Feb 1996 → Jul 2003
- 2Stallion Energy, Inc.Aug 2003 → Apr 2005
- 3Pogo Panhandle 2004, L.P.May 2005 → Feb 2008
- 4OXY USA Inc.Mar 2008 → Nov 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 445254-99 | Recompletion | Odessa Exploration, Inc. | Feb 27, 1996 | Feb 27, 1996 | Feb 16, 1996 | 3,400 |
| 182515-99 | Drill | Costa Resources, Inc. | Dec 31, 1982 | Dec 31, 1982 | — | 4,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-116739 | — | — | — | — |
| — | — G-10-157544 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,390 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 2,240 | 150 |
| San Andres | 2,476 | -86 |
| Glorieta | 3,160 | -770 |
| Glorieta | 3,206 | -816 |
| Clear ForkCLEARFORK | 3,334 | -944 |
| Tubb | 4,008 | -1,618 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,210 | 3,248 | Perforated |
| 3,384 | 3,394 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 544 | 12.25 | 400 S |
| 2.375 | 3,182 | — | — |
| 4.5 | 4,184 | 7.875 | 975 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 21, 1996 | Mar 12, 1996 | Yes |
| 00 | Apr 11, 1996 | — | — |
| 00 | Jul 12, 1985 | Jun 5, 1985 | — |
| 00 | Jul 9, 1985 | — | — |
| 00 | Jan 12, 1984 | Apr 7, 1983 | — |
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 42-371-34152 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-34152 → 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/37134152, documented in the API reference.