WELL · 42-227-41306 · DISTRICT 8
Curly Bill Unit 31-42 #4HA
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Curly Bill Unit 31-42 #4HA (API 42-227-41306) is a horizontal well in Howard County operated by Langford & Brigham Operating LLC, completed February 12, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 17, 2021, permitted to 7,333 ft.
It was permitted by Murchison Oil And Gas, LLC and has since transferred to Langford & Brigham Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.
Its lease has reported 510K barrels of oil and 675K mcf of gas since February 2022, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Langford & Brigham Operating LLC
Permitted by Murchison Oil and Gas, LLC; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Sep 4, 2025 · 23 permits on file · (512) 871-1001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Langford & Brigham Operating LLC |
| Production reports | Langford & Brigham Operating LLCthrough Apr 2026 |
| Latest permit | Murchison Oil and Gas, LLCSep 17, 2021 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,333
- total depth, ft
- 1
- permits on file
- Sep 17, 2021
- last permit issued
- Feb 12, 2022
- completed
- 510K
- cumulative oil, bbl
- 675K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2022 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 12, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.513312, -101.443182
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Howard 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Curly Bill Unit 31-42 O-10-57049 | Spraberry (Trend Area) | Langford & Brigham Operating LLC | 2 | 510K | 675K | Feb 2022 – Jul 2026 |
Oil, barrels lease total
Last 12 months 54,679 · prior 12 78,422(-30%)
Gas, mcf lease total
Last 12 months 159,220 · prior 12 171,780(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Murchison Oil and Gas, LLCFeb 2022 → Nov 2024
- 2Langford & Brigham Operating LLCDec 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 872761-99 | Drill | Murchison Oil and Gas, LLC | Sep 14, 2021 | Sep 17, 2021 | Nov 12, 2021 | 7,333 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-57049 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,583 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 699 | 1,884 |
| Rustler | 1,238 | 1,345 |
| Yates | 1,817 | 766 |
| Seven Rivers | 1,903 | 680 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,005 | -422 |
| Glorieta | 3,864 | -1,281 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 4,473 | -1,890 |
| Spraberry | 5,836 | -3,253 |
| Dean | 7,045 | -4,462 |
| Leonard | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,575 | 15,220 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 432 | 16 | 330 S |
| 9.625 | 6,566 | 12.25 | 970 S |
| 5.5 | 15,271 | 8.5 | 2,300 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 | Jun 13, 2022 | Apr 12, 2022 | 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 42-227-41306 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-41306 → 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.
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.
Curly Bill Unit 31-4242-227-41305
0.0 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 699 | 1,884 |
| Rustler | 1,238 | 1,345 |
| Yates | 1,801 | 782 |
| Seven Rivers | 1,890 | 693 |
| San Andres | 3,051 | -468 |
| Glorieta | 3,863 | -1,280 |
| Clear Fork | 4,480 | -1,897 |
| Spraberry | 5,839 | -3,256 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-41940
0.5 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 750 | 1,837 |
| Rustler | 1,359 | 1,228 |
| Yates | 1,821 | 766 |
| Seven Rivers | 1,901 | 686 |
| San Andres | 3,010 | -423 |
| Glorieta | 3,789 | -1,202 |
| Clear Fork | 4,535 | -1,948 |
| Spraberry | 5,742 | -3,155 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-41941
0.5 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 767 | 1,820 |
| Rustler | 1,359 | 1,228 |
| Yates | 1,811 | 776 |
| Seven Rivers | 1,901 | 686 |
| San Andres | 3,013 | -426 |
| Glorieta | 3,789 | -1,202 |
| Clear Fork | 4,522 | -1,935 |
| Spraberry | 5,729 | -3,142 |
10 TOPS · FIRST 8
Outlaw42-227-41843
0.7 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 768 | 1,835 |
| Rustler | 1,360 | 1,243 |
| Yates | 1,800 | 803 |
| Seven Rivers | 1,902 | 701 |
| San Andres | 3,013 | -410 |
| Glorieta | 3,942 | -1,339 |
| Clear Fork | 4,483 | -1,880 |
| Spraberry | 5,717 | -3,114 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-40542
0.8 KM · Murchison Oil and Gas, LLC · Section with this well →
| Yates | 1,850 | 753 |
| Seven Rivers | 1,924 | 679 |
| San Andres | 3,015 | -412 |
| Glorieta | 3,898 | -1,295 |
| Clear Fork | 4,447 | -1,844 |
| Spraberry | 5,749 | -3,146 |
| Dean | 6,987 | -4,384 |
| Wolfcamp | 7,108 | -4,505 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-40541
0.8 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 264 | 2,339 |
| Rustler | 1,201 | 1,402 |
| Yates | 1,850 | 753 |
| Seven Rivers | 1,924 | 679 |
| San Andres | 3,015 | -412 |
| Glorieta | 3,898 | -1,295 |
| Clear Fork | 4,447 | -1,844 |
| Spraberry | 5,749 | -3,146 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-41967
0.9 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 781 | 1,825 |
| Rustler | 1,351 | 1,255 |
| Yates | 1,819 | 787 |
| Seven Rivers | 1,911 | 695 |
| San Andres | 3,013 | -407 |
| Glorieta | 3,865 | -1,259 |
| Clear Fork | 4,533 | -1,927 |
| Spraberry | 5,747 | -3,141 |
10 TOPS · FIRST 8
Bonnie Parker Unit 32-4142-227-41968
0.9 KM · Murchison Oil and Gas, LLC · Section with this well →
| Santa Rosa | 773 | 1,833 |
| Rustler | 1,349 | 1,257 |
| Yates | 1,816 | 790 |
| Seven Rivers | 1,911 | 695 |
| San Andres | 3,011 | -405 |
| Glorieta | 3,865 | -1,259 |
| Clear Fork | 4,508 | -1,902 |
| Spraberry | 5,709 | -3,103 |
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/22741306, documented in the API reference.