TEXAS · WELLS · COCHRAN COUNTY · API 42-079-30971 · DISTRICT 7B
Masten Unit #14
Cochran County · Levelland field · Injection · Vertical
Masten Unit #14 (API 42-079-30971) is a well in Cochran County operated by Talis Energy Inc., completed May 9, 1994 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued August 25, 1978, permitted to 4,910 ft.
It was permitted by Union Oil Company Of California and has since transferred to Talis Energy Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, Yates, San Andres, Slaughter.
Its 2 leases have reported 977K barrels of oil and 3.82M mcf of gas since January 1993, last reporting in July 2026. The leases carry 76 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 13.9K barrels injected in the 12 months reported through February 2026.
Operator of record
Permitted by Union Oil Company of California; the EWA schedule now lists a different operator.
- Based in
- Austin, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Jun 10, 2025
- Phone
- (512) 767-4928
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Union Oil Company of California |
| Production reports | Talis Energy Inc.through Mar 2026 |
| Latest permit | Union Oil Company of CaliforniaAug 25, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,910
- total depth, ft
- 1
- permits on file
- Aug 25, 1978
- last permit issued
- May 9, 1994
- completed
- 977K
- cumulative oil, bbl
- 3.82M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 9, 1994
- 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 2 leases this well is completed on; they carry 76 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Masten Unit O-11-67253 | Levelland | Talis Energy Inc. | 63 | 965K | 3.75M | Jul 1994 – Jul 2026 |
| Masten "A" O-11-3818 | Levelland | Union Oil Company of California | 13 | 11.6K | 70.8K | Jan 1993 – Oct 1994 |
Oil, barrels lease total
Last 12 months 11,769 · prior 12 15,796(-25%)
Gas, mcf lease total
Last 12 months 913 · prior 12 10,453(-91%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Oil Company of CaliforniaJan 1993 → May 2000
- 2Pure Resources, L.P.Jun 2000 → Mar 2006
- 3Chevron Midcontinent, L.P.Apr 2006 → Aug 2015
- 4Steward Energy II, LLCSep 2015 → Apr 2020
- 5RMB Operating LLCMay 2020 → Jun 2023
- 6Oilwell Operators, Inc.Jul 2023 → Jun 2025
- 7Talis Energy Inc.Aug 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 31424-99 | Drill | Union Oil Company of California | Aug 25, 1978 | Aug 25, 1978 | Sep 6, 1978 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 9, 1994 | Masten Unit O-11-67253 | Levelland | Talis Energy Inc. | Injection | 4,910 |
| May 9, 1994 | Masten A O-11-3818 | Levelland | Union Oil Company of California | Not on Schedule | — |
| Sep 25, 1978 | Masten A G-11-80879 | Levelland (San Andres) | Union Oil Company of California | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,818 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| RustlerRUSTLER ANHY. | 2,380 | 1,438 |
| Yates | 2,800 | 1,018 |
| San Andres | 4,061 | -243 |
| Slaughter | 4,748 | -930 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,749 | 4,779 | Perforated |
| 4,860 | 4,906 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 410 | 11 | 225 S |
| 2.375 | 4,608 | — | — |
| 5.5 | 4,910 | 7.875 | 600 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 | Jun 29, 1994 | Jun 15, 1994 | — |
| 00 | Jun 23, 1994 | Jun 15, 1994 | — |
| 00 | Jun 22, 1994 | Jun 2, 1994 | — |
| 00 | May 25, 1984 | May 10, 1984 | — |
| 00 | May 17, 1984 | May 10, 1984 | — |
| 00 | Jan 12, 1984 | Feb 13, 1979 | — |
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 42-079-30971 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-30971 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 13.9K
- bbl, last 12 reported months
- 1.6M
- bbl, all reported
- Feb 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000080636 | H-1 Injection | Active | 385 | 2,350 | 4,700–5,000 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 13,872 · prior 12 19,558(-29%)
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/07930971, documented in the API reference.