WELL · 42-109-33435 · DISTRICT 8
Mustang State Unit #21H
Culberson County · Phantom (Wolfcamp) field · Producing · Horizontal
Mustang State Unit #21H (API 42-109-33435) is a horizontal well in Culberson County operated by 1920 Energy LLC, completed August 10, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued December 21, 2018, permitted to 11,000 ft.
It was permitted by Carrizo (Permian) LLC and has since transferred to 1920 Energy LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Delaware, Cherry Canyon, Bone Spring, Wolfcamp.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Carrizo (Permian) LLC; the EWA schedule now lists a different operator.
Allen, TX · P-5 Y, filed Feb 4, 2026 · 10 permits on file · (380) 300-6914
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | 1920 Energy LLC |
| Production reports | 1920 Energy, LLCthrough Nov 2025 |
| Latest permit | Carrizo (Permian) LLCDec 21, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 3
- permits on file
- Dec 21, 2018
- last permit issued
- Aug 10, 2019
- completed
- 0
- cumulative oil, bbl
- 1.67M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 10, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.677410, -104.129313
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Culberson County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mustang State Unit G-10-287250 | Phantom (Wolfcamp) | 1920 Energy, LLC | 1 | 0 | 1.67M | Mar 2019 – Jul 2026 |
Gas, mcf lease total
Last 12 months 32,865 · prior 12 166,916(-80%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Carrizo (Permian) LLCAug 2019 → Jan 2020
- 2Callon (Permian) LLCFeb 2020 → May 2021
- 31920 Energy, LLCJun 2021 → Nov 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 848110-97 | Drill | Carrizo (Permian) LLC | Jan 11, 2019 | Dec 21, 2018 | May 4, 2019 | 11,000 |
| 848110-98 | Drill | Carrizo (Permian) LLC | Jan 10, 2019 | Dec 21, 2018 | — | 11,000 |
| 848110-99 | Drill | Carrizo (Permian) LLC | Dec 20, 2018 | Dec 21, 2018 | Feb 24, 2019 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-287250 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,283 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 2,241 | 1,042 |
| Cherry Canyon | 3,240 | 43 |
| Bone SpringBONE SPRINGS | 6,290 | -3,007 |
| Wolfcamp | 8,805 | -5,522 |
| Atoka | — | — |
| DelawareFORD-DELAWARE | — | — |
| Mississippian | — | — |
| Morrow | — | — |
| Rustler | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,692 | 17,057 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,474 | 17.5 | 1,273 S |
| 9.625 | 8,524 | 12.25 | 1,422 S |
| 5.5 | 17,168 | 8.5 | 2,246 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 | Feb 14, 2020 | Oct 16, 2019 | Yes |
| 00 | Oct 17, 2019 | Jul 1, 2019 | 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 42-109-33435 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-109-33435 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Mustang State Unit42-109-33436
0.0 KM · Carrizo (Permian) LLC · Section with this well →
| Delaware | 2,238 | 1,045 |
| Cherry Canyon | 3,233 | 50 |
| Bone Spring | 5,818 | -2,535 |
| Wolfcamp | 8,793 | -5,510 |
| Morrow | — | |
| Atoka | — | |
| Rustler | — | |
| Strawn | — |
10 TOPS · FIRST 8
Mustang State Unit42-109-33298
0.0 KM · Carrizo (Permian) LLC · Section with this well →
| Rustler | 350 | 2,932 |
| Delaware | 2,224 | 1,058 |
| Cherry Canyon | 3,232 | 50 |
| Bone Spring | 5,804 | -2,522 |
| Wolfcamp | 8,836 | -5,554 |
| Mississippian | — | |
| Morrow | — | |
| Atoka | — |
10 TOPS · FIRST 8
Mustang State Unit42-109-32859
0.9 KM · Carrizo (Permian) LLC · Section with this well →
| Delaware | 2,279 | 1,004 |
| Cherry Canyon | 3,288 | -5 |
| Bone Spring | 5,898 | -2,615 |
| Wolfcamp | 8,862 | -5,579 |
| Strawn | — | |
| Silurian (undifferentiated) | — | |
| Rustler | — | |
| Morrow | — |
11 TOPS · FIRST 8
State Hope Springs 113-23X1442-109-33365
2.9 KM · BHP Billiton Pet(txla OP) Co · Section with this well →
| Cherry Canyon | 3,187 | -1 |
| Bone Spring | 5,812 | -2,626 |
| Wolfcamp | 8,787 | -5,601 |
| Mississippian | — | |
| Delaware | — | |
| Delaware | — | |
| Morrow | — | |
| Strawn | — |
10 TOPS · FIRST 8
HSS State 113-23X1442-109-33240
2.9 KM · BHP Billiton Pet(txla OP) Co · Section with this well →
| Cherry Canyon | 3,163 | 49 |
| Bone Spring | 5,754 | -2,542 |
| Wolfcamp | 8,711 | -5,499 |
| Wolfcamp | 9,042 | -5,830 |
| Delaware | — | |
| Atoka | — | |
| Delaware | — | |
| Mississippian | — |
10 TOPS · FIRST 8
Fortress State Unit42-109-33266
3.1 KM · Carrizo (Permian) LLC · Section with this well →
| Rustler | 375 | 2,907 |
| Delaware | 2,101 | 1,181 |
| Cherry Canyon | 3,107 | 175 |
| Bone Spring | 5,647 | -2,365 |
| Wolfcamp | 8,726 | -5,444 |
| Delaware | — | |
| Mississippian | — | |
| Morrow | — |
10 TOPS · FIRST 8
Harrison State42-109-32303
3.4 KM · Hallwood Petroleum, LLC · Section with this well →
| Barnett | 14,167 | -10,975 |
| Woodford | 14,882 | -11,690 |
| Devonian | 15,147 | -11,955 |
| Missippian | — |
HS State 113-24X1342-109-33020
3.8 KM · BHP Billiton Pet(txla OP) Co · Section with this well →
| Lamar | 2,223 | 942 |
| Bell Canyon | 2,252 | 913 |
| Cherry Canyon | 3,204 | -39 |
| Brushy Canyon | 4,460 | -1,295 |
| Bone Spring | 5,820 | -2,655 |
| Avalon | 6,351 | -3,186 |
| Bone Spring | 6,797 | -3,632 |
| Delaware | — |
10 TOPS · FIRST 8
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/10933435, documented in the API reference.