WELL · 42-135-41898 · DISTRICT 8
Lupin TXL Fee B #1SW
Ector County · Sallie Ann (Spraberry-Wolfcamp) field · Vertical
Lupin Txl Fee B #1SW (API 42-135-41898) is a well in Ector County operated by Diamondback E&P LLC, completed October 17, 2012.
The RRC has issued one drilling permit, issued June 15, 2012, permitted to 6,000 ft.
It was permitted by Chevron U. S. A. Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 3 formation tops, including San Andres, Holt, Clear Fork.
Its 2 leases have reported 1.46M barrels of oil and 4.98M mcf of gas since September 2012, last reporting in July 2026. The leases carry 37 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 76.6K barrels injected in the 12 months reported through October 2025.
Operator of record
Permitted by Chevron U. S. A. Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Chevron U. S. A. Inc.Jun 15, 2012 |
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
- 1
- permits on file
- Jun 15, 2012
- last permit issued
- Oct 17, 2012
- completed
- 1.46M
- cumulative oil, bbl
- 4.98M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 17, 2012
- 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 37 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lupin TXL Fee 'B' O-10-42510 | Sallie Ann (Spraberry-Wolfcamp) | Diamondback E&P LLC | 36 | 1.46M | 4.98M | Sep 2012 – Jul 2026 |
| Lupin TXL Fee "B" SWD O-10-58874 | Sallie Ann (Spraberry-Wolfcamp) | Rattler Midstream Operating LLC | 1 | 0 | 0 | Dec 2022 – Jul 2026 |
Gas, mcf lease total
Last 12 months 62,030 · prior 12 100,682(-38%)
Oil, barrels lease total
Last 12 months 8,700 · prior 12 12,553(-31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chevron U. S. A. Inc.Oct 2012 → Jan 2022
- 2Firebird Energy LLCFeb 2022 → Nov 2022
- 3Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 741466-99 | Drill | Chevron U. S. A. Inc. | May 24, 2012 | Jun 15, 2012 | Aug 23, 2012 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-42510 | — | — | — | — |
| — | — O-10-58874 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,951 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,800 | -1,849 |
| Holt | 6,608 | -3,657 |
| Clear Fork | 7,120 | -4,169 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,558 | 5,578 | Perforated |
| 5,620 | 5,640 | Perforated |
| 5,640 | 5,660 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 415 | 12.25 | 350 S |
| 7 | 5,778 | 8.75 | 1,200 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 8, 2023 | Dec 4, 2012 | Yes |
| 00 | Apr 29, 2013 | Dec 4, 2012 | 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 42-135-41898 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-41898 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 76.6K
- bbl, last 12 reported months
- 2.37M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000105491 | W-14 Disposal | Active | 10,000 | 2,225 | 4,700–5,800 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 76,588 · prior 12 130,762(-41%)
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/13541898, documented in the API reference.