WELL · 42-317-42155 · DISTRICT 8
UL 0312 W7 #12MA
Martin County · Spraberry (Trend Area) field · Producing · Horizontal
UL 0312 W7 #12MA (API 42-317-42155) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed August 29, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 28, 2019, permitted to 8,800 ft.
It was permitted by Qep Energy Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 282K barrels of oil and 661K mcf of gas since May 2019, last reporting in July 2026.
Operator of record
Permitted by QEP Energy Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 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 | QEP Energy CompanyFeb 28, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,800
- total depth, ft
- 1
- permits on file
- Feb 28, 2019
- last permit issued
- Aug 29, 2022
- completed
- 282K
- cumulative oil, bbl
- 661K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 29, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.410225, -102.207202
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 0312 W7 O-10-53136 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 282K | 661K | May 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 4,849 · prior 12 6,927(-30%)
Gas, mcf lease total
Last 12 months 24,771 · prior 12 33,637(-26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1QEP Energy CompanyFeb 2020 → Sep 2021
- 2Diamondback E&P LLCOct 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 850435-99 | Drill | QEP Energy Company | Feb 26, 2019 | Feb 28, 2019 | May 13, 2019 | 8,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-53136 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,932 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,453 | 1,479 |
| Santa Rosa | 1,505 | 1,427 |
| Yates | 3,041 | -109 |
| Yates | 3,070 | -138 |
| Queen | 3,992 | -1,060 |
| Queen | 4,050 | -1,118 |
| Grayburg | 4,546 | -1,614 |
| Grayburg | 4,600 | -1,668 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,715 | -1,783 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,845 | -1,913 |
| Spraberry | 8,326 | -5,394 |
| Cisco | — | — |
| Dean | — | — |
| Pennsylvanian | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,007 | 18,682 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,837 | 17.5 | 1,590 S |
| 9.625 | 5,817 | 12.25 | 1,330 S |
| 5.5 | 18,892 | 8.5 | 2,775 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 | Nov 8, 2022 | Oct 4, 2022 | — |
| 00 | Jul 15, 2020 | May 14, 2020 | Yes |
| 00 | Mar 16, 2020 | Nov 19, 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 42-317-42155 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-42155 → 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 0312 W642-317-42156
0.0 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,459 | 1,473 |
| Yates | 3,056 | -124 |
| Queen | 4,008 | -1,076 |
| Grayburg | 4,555 | -1,623 |
| San Andres | 4,711 | -1,779 |
| Spraberry | 8,328 | -5,396 |
| Pennsylvanian | — | |
| Cisco | — |
10 TOPS · FIRST 8
UL 0312 W1042-317-42154
0.0 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,476 | 1,456 |
| Yates | 3,059 | -127 |
| Queen | 4,020 | -1,088 |
| Grayburg | 4,568 | -1,636 |
| San Andres | 4,741 | -1,809 |
| Spraberry | 8,315 | -5,383 |
| Cisco | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
UL 0312 W442-317-42157
0.0 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,476 | 1,456 |
| Yates | 3,059 | -127 |
| Queen | 4,020 | -1,088 |
| Grayburg | 4,568 | -1,636 |
| San Andres | 4,741 | -1,809 |
| Spraberry | 8,315 | -5,383 |
| Wolfcamp | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
UL 0312 W142-317-42159
0.0 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,466 | 1,466 |
| Yates | 3,061 | -129 |
| Queen | 4,013 | -1,081 |
| Grayburg | 4,550 | -1,618 |
| San Andres | 4,730 | -1,798 |
| Spraberry | 8,328 | -5,396 |
| Pennsylvanian | — | |
| Dean | — |
10 TOPS · FIRST 8
UL 0312 E1842-317-41966
0.3 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,430 | 1,505 |
| Yates | 3,010 | -75 |
| Queen | 3,963 | -1,028 |
| Grayburg | 4,493 | -1,558 |
| San Andres | 4,682 | -1,747 |
| Spraberry | 8,291 | -5,356 |
| Cisco | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
UL 0312 E1742-317-41965
0.3 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,420 | 1,515 |
| Yates | 3,011 | -76 |
| Queen | 3,965 | -1,030 |
| Grayburg | 4,502 | -1,567 |
| San Andres | 4,686 | -1,751 |
| Spraberry | 8,291 | -5,356 |
| Dean | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
UL 0312 W1142-317-42163
0.3 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,478 | 1,462 |
| Yates | 3,068 | -128 |
| Queen | 4,020 | -1,080 |
| Grayburg | 4,582 | -1,642 |
| San Andres | 4,747 | -1,807 |
| Spraberry | 8,336 | -5,396 |
| Cisco | — | |
| Dean | — |
10 TOPS · FIRST 8
UL 0312 E1642-317-41964
0.3 KM · QEP Energy Company · Section with this well →
| Santa Rosa | 1,427 | 1,508 |
| Yates | 3,000 | -65 |
| Queen | 3,956 | -1,021 |
| Grayburg | 4,491 | -1,556 |
| San Andres | 4,676 | -1,741 |
| Spraberry | 8,291 | -5,356 |
| Pennsylvanian | — | |
| Wolfcamp | — |
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/31742155, documented in the API reference.