WELL · 42-317-41272 · DISTRICT 8
UL Comanche 42A #1
Martin County · Spraberry (Trend Area) field · Producing · Horizontal
UL Comanche 42a #1 (API 42-317-41272) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed April 1, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued February 6, 2018, permitted to 12,000 ft.
It was permitted by Exl Petroleum Operating Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 15 formation tops, including Santa Rosa, Grayburg, Spraberry, Wolfcamp.
Its lease has reported 385K barrels of oil and 227K mcf of gas since July 2018, last reporting in July 2026.
Operator of record
Permitted by EXL Petroleum Operating Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920
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 | EXL Petroleum Operating Inc.Feb 6, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Feb 6, 2018
- last permit issued
- Apr 1, 2021
- completed
- 385K
- cumulative oil, bbl
- 227K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 1, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.476974, -102.183283
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Martin 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 |
|---|---|---|---|---|---|---|
| UL Comanche 42A O-10-50759 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 385K | 227K | Jul 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 10,288 · prior 12 16,057(-36%)
Gas, mcf lease total
Last 12 months 8,737 · prior 12 8,597(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EXL Petroleum Operating Inc.Jul 2018 → Oct 2018
- 2Diamondback E&P LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 835918-98 | Drill | EXL Petroleum Operating Inc. | Nov 16, 2018 | Feb 6, 2018 | Apr 13, 2018 | 12,000 |
| 835918-99 | Drill | EXL Petroleum Operating Inc. | Feb 2, 2018 | Feb 6, 2018 | Apr 13, 2018 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-50759 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,886 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,280 | 1,606 |
| Grayburg | 4,370 | -1,484 |
| Spraberry | 8,173 | -5,287 |
| Wolfcamp | 9,570 | -6,684 |
| Cisco | — | — |
| Dean | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Mississippian | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | — | — |
| Silurian (undifferentiated)SILURIAN | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,101 | 15,046 | Perforated |
| 10,101 | 15,245 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,009 | 17.5 | 1,400 S |
| 9.625 | 8,779 | 12.25 | 1,725 S |
| 5.5 | 15,308 | 8.5 | 2,095 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 | Sep 6, 2022 | May 26, 2022 | — |
| 00 | Aug 13, 2021 | Jul 29, 2021 | Yes |
| 00 | Apr 16, 2019 | Jan 15, 2019 | — |
| 00 | Nov 28, 2018 | Sep 28, 2018 | 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 42-317-41272 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-41272 → 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.
UL Comanche 282942-317-41247
0.5 KM · EXL Petroleum Operating Inc. · Section with this well →
| Santa Rosa | 1,301 | 1,679 |
| Yates | 3,877 | -897 |
| San Andres | 4,641 | -1,661 |
| Spraberry | 8,208 | -5,228 |
| Wolfcamp | 9,586 | -6,606 |
| Dean | — | |
| Queen | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
University42-317-33934
0.5 KM · Knox Industries, Inc. · Section with this well →
| Strawn | 10,828 | -7,938 |
| UP Mississippian | 11,296 | -8,406 |
| Mississippian | 11,296 | -8,406 |
| Mississippian | 11,703 | -8,813 |
| Mississippian | 11,703 | -8,813 |
| Woodford | 12,043 | -9,153 |
| Silurian (undifferentiated) | 12,143 | -9,253 |
UL Comanche I 29-4242-317-43393
0.8 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,925 | -39 |
| Queen | 3,912 | -1,026 |
| Grayburg | 4,041 | -1,155 |
| San Andres | 4,412 | -1,526 |
| Spraberry | 8,209 | -5,323 |
| Pennsylvanian | — | |
| Santa Rosa | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
UL Comanche H 29-4242-317-43392
0.8 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,928 | -42 |
| Queen | 3,912 | -1,026 |
| Grayburg | 4,044 | -1,158 |
| San Andres | 4,418 | -1,532 |
| Glorieta | 5,426 | -2,540 |
| Clear Fork | 6,363 | -3,477 |
| Spraberry | 8,206 | -5,320 |
| Wolfcamp | — |
10 TOPS · FIRST 8
UL Comanche J 29-4242-317-43394
0.8 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,933 | -47 |
| Seven Rivers | 3,149 | -263 |
| Queen | 3,912 | -1,026 |
| Grayburg | 4,045 | -1,159 |
| San Andres | 4,417 | -1,531 |
| Glorieta | 5,406 | -2,520 |
| Clear Fork | 6,366 | -3,480 |
| Spraberry | 8,215 | -5,329 |
11 TOPS · FIRST 8
Samba42-317-39086
1.0 KM · Midenergy Operating, LLC · Section with this well →
| Santa Rosa | 1,363 | 1,525 |
| Yates | 2,862 | 26 |
| San Andres | 4,341 | -1,453 |
| Clear Fork | 6,279 | -3,391 |
| Dean | 9,381 | -6,493 |
| Strawn | 10,838 | -7,950 |
| Atoka | 10,997 | -8,109 |
| Barnett | 11,182 | -8,294 |
10 TOPS · FIRST 8
UL Comanche U 29-4242-317-43659
1.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,977 | -78 |
| Queen | 3,662 | -763 |
| Grayburg | 4,098 | -1,199 |
| San Andres | 4,477 | -1,578 |
| Clear Fork | 6,414 | -3,515 |
| Spraberry | 8,253 | -5,354 |
| Cisco | — | |
| Dean | — |
10 TOPS · FIRST 8
UL Comanche V 29-4242-317-43658
1.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,973 | -74 |
| Queen | 3,663 | -764 |
| Grayburg | 4,096 | -1,197 |
| San Andres | 4,476 | -1,577 |
| Clear Fork | 6,422 | -3,523 |
| Spraberry | 8,252 | -5,353 |
| Cisco | — | |
| Dean | — |
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/31741272, documented in the API reference.