WELL · 42-135-02437 · DISTRICT 8
Alma #4
Ector County · TXL (Devonian) field · Vertical
Alma #4 (API 42-135-02437) is a permitted well in Ector County filed by Chesapeake Operating, Inc.; no completion report is on file yet.
The RRC has issued one drilling permit, issued July 13, 2009, permitted to 9,877 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Tubb.
Its 2 leases have reported 203K barrels of oil and 435K mcf of gas since January 1993, last reporting in July 2026. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 4, 2025 · 23 permits on file · (903) 876-2591
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Highmark Energy Operating LLC |
| Production reports | Highmark Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, Inc.Jul 13, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,877
- total depth, ft
- 1
- permits on file
- Jul 13, 2009
- last permit issued
- —
- completed
- 203K
- cumulative oil, bbl
- 435K
- 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 2 leases this well is completed on; they carry 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Alma O-10-7001 | TXL (Silurian) | Highmark Energy Operating, LLC | 5 | 52.1K | 132K | Jan 1993 – Jul 2026 |
| Alma O-10-18022 | TXL (Tubb) | Highmark Energy Operating, LLC | 6 | 151K | 303K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 582 · prior 12 574(+1%)
Gas, mcf lease total
Last 12 months 0 · prior 12 1,741(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Phillips Petroleum CompanyJan 1993 → Sep 1995
- 2Merit Energy CompanyOct 1995 → Apr 2000
- 3Permian Resources, Inc.May 2000 → Apr 2004
- 4Chesapeake Operating, Inc.May 2004 → Mar 2010
- 5Three Rivers Operating Co LLCApr 2010 → Jul 2012
- 6COG Operating LLCAug 2012 → Dec 2012
- 7Legacy Reserves Operating LPJan 2013 → Feb 2023
- 8Highmark Energy Operating, LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 682926-99 | Recompletion | Chesapeake Operating, Inc. | Jul 9, 2009 | Jul 13, 2009 | Sep 1, 2009 | 9,877 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-7001 | — | — | — | — |
| — | — O-10-18022 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,331 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Tubb | 6,168 | -2,837 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,199 | 6,824 | Perforated |
| — | 7,799 | Perforated |
| — | 8,065 | Perforated |
| — | 8,488 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 256 | 17.25 | 250 S |
| 8.625 | 4,202 | 11 | 3,000 S |
| 5.5 | 9,843 | 7.875 | 1,300 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 26, 2010 | Oct 8, 2009 | Yes |
| 00 | Feb 12, 2010 | — | — |
| 00 | Jan 12, 1984 | Mar 6, 1975 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-135-02437 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-02437 → 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/13502437, documented in the API reference.