WELL · 42-079-33337 · DISTRICT 8
Masten Unit #C 5
Cochran County · Levelland field · NO Production · Vertical
Masten Unit #C 5 (API 42-079-33337) is a well in Cochran County operated by Talis Energy Inc., completed September 1, 2016 and listed as no production on the RRC schedule.
The RRC has issued one drilling permit, issued December 30, 2015, permitted to 9,000 ft.
It was permitted by Steward Energy II, LLC and has since transferred to Talis Energy Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, San Andres, Abo.
Its lease has reported 965K barrels of oil and 3.75M mcf of gas since July 1994, last reporting in July 2026. The lease carries 63 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Steward Energy II, LLC; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Mar 4, 2026 · (806) 332-9142
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Talis Energy Inc. |
| Production reports | Talis Energy Inc.through Mar 2026 |
| Latest permit | Steward Energy II, LLCDec 30, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 1
- permits on file
- Dec 30, 2015
- last permit issued
- Sep 1, 2016
- completed
- 965K
- cumulative oil, bbl
- 3.75M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1994 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 1, 2016
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 63 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 |
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 CaliforniaJul 1994 → 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 |
|---|---|---|---|---|---|---|
| 812938-99 | Drill | Steward Energy II, LLC | Dec 29, 2015 | Dec 30, 2015 | Feb 17, 2016 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-67253 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,828 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaRED BED-SANTA ROSA | 1,100 | 2,728 |
| Yates | 2,798 | 1,030 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,046 | -218 |
| Abo | — | — |
| Cisco | — | — |
| Clear ForkCLEARFORK | — | — |
| Devonian | — | — |
| Strawn | — | — |
| Wichita-AlbanyWICHITA | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,880 | 4,905 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,400 | 12.25 | 905 S |
| 5.5 | 5,498 | 8.75 | 650 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 | Dec 12, 2016 | Nov 7, 2016 | Yes |
| 00 | May 27, 2016 | Apr 11, 2016 | Yes |
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 42-079-33337 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-33337 → 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.
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/07933337, documented in the API reference.