WELL · 42-003-49021 · DISTRICT 8
UL Dengar 40-45 A #1WA
Andrews County · Spraberry (Trend Area) field · Producing · Horizontal
UL Dengar 40-45 A #1WA (API 42-003-49021) is a horizontal well in Andrews County operated by Diamondback E&P LLC, completed March 31, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued August 12, 2024, permitted to 13,000 ft.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Queen, Grayburg.
Its lease has reported 217K barrels of oil and 114K mcf of gas since March 2025, last reporting in July 2026.
Operator of record
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 | Diamondback E&P LLCAug 12, 2024 |
- 13,000
- total depth, ft
- 2
- permits on file
- Aug 12, 2024
- last permit issued
- Mar 31, 2025
- completed
- 217K
- cumulative oil, bbl
- 114K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 31, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.462396, -102.219433
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Andrews 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 Dengar 40-45 A O-10-63857 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 217K | 114K | Mar 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 144,926 · prior 12 71,925(+101%)
Gas, mcf lease total
Last 12 months 82,971 · prior 12 30,889(+169%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 901687-98 | Drill | Diamondback E&P LLC | Sep 22, 2025 | Aug 12, 2024 | Sep 18, 2024 | 13,000 |
| 901687-99 | Drill | Diamondback E&P LLC | Jul 30, 2024 | Aug 12, 2024 | Sep 18, 2024 | 9,850 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-63857 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,964 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,056 | -92 |
| Seven Rivers | 3,291 | -327 |
| Queen | 3,559 | -595 |
| Grayburg | 4,131 | -1,167 |
| San AndresSAN ANDRES - CO2 FLOOD, HIGH FLO | 4,573 | -1,609 |
| Glorieta | 5,555 | -2,591 |
| Clear ForkCLEARFORK | 6,503 | -3,539 |
| Holt | — | — |
| Permian (undifferentiated)PERMIAN DETRITAL | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,380 | 17,889 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,864 | 14.75 | 1,410 S |
| 8.625 | 5,923 | 9.875 | 1,060 S |
| 5.5 | 17,905 | 7.875 | 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 25, 2025 | Sep 16, 2025 | 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 42-003-49021 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-49021 → 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 Dengar 40-45 B42-003-49023
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,056 | -92 |
| Seven Rivers | 3,290 | -326 |
| Queen | 3,559 | -595 |
| Grayburg | 4,130 | -1,166 |
| San Andres | 4,572 | -1,608 |
| Clear Fork | 6,497 | -3,533 |
| Tubb | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
UL Dengar 40-45 C42-003-49018
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,055 | -91 |
| Seven Rivers | 3,289 | -325 |
| Queen | 3,558 | -594 |
| Grayburg | 4,129 | -1,165 |
| San Andres | 4,570 | -1,606 |
| Glorieta | 5,528 | -2,564 |
| Clear Fork | 6,492 | -3,528 |
| Tubb | — |
10 TOPS · FIRST 8
UL Dengar 40-45 D42-003-49020
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,055 | -92 |
| Seven Rivers | 3,288 | -325 |
| Queen | 3,558 | -595 |
| Grayburg | 4,128 | -1,165 |
| San Andres | 4,569 | -1,606 |
| Glorieta | 5,522 | -2,559 |
| Clear Fork | 6,489 | -3,526 |
| Tubb | — |
10 TOPS · FIRST 8
UL Dengar 40-45 F42-003-49024
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,038 | -68 |
| Seven Rivers | 3,262 | -292 |
| Queen | 3,794 | -824 |
| Grayburg | 4,150 | -1,180 |
| San Andres | 4,553 | -1,583 |
| Glorieta | 5,447 | -2,477 |
| Clear Fork | 6,467 | -3,497 |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
UL Dengar 40-3 A42-003-49019
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,035 | -64 |
| Seven Rivers | 3,260 | -289 |
| Queen | 3,788 | -817 |
| Grayburg | 4,154 | -1,183 |
| San Andres | 4,556 | -1,585 |
| Glorieta | 5,438 | -2,467 |
| Clear Fork | 6,461 | -3,490 |
| Holt | — |
10 TOPS · FIRST 8
UL Dengar 40-45 E42-003-49022
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,040 | -69 |
| Seven Rivers | 3,263 | -292 |
| Queen | 3,788 | -817 |
| Grayburg | 4,154 | -1,183 |
| San Andres | 4,563 | -1,592 |
| Glorieta | 5,447 | -2,476 |
| Clear Fork | 6,470 | -3,499 |
| Holt | — |
10 TOPS · FIRST 8
University 6-40 Unit42-003-47314
0.5 KM · Ajax Resources, LLC · Section with this well →
| Clear Fork | 6,448 | -3,483 |
| Opal Spraberry | 8,200 | -5,235 |
| Spraberry | 8,333 | -5,368 |
| Spraberry | 8,669 | -5,704 |
| Spraberry | 9,295 | -6,330 |
| Permian (undifferentiated) | — | |
| Holt | — | |
| Grayburg | — |
14 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47993
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,022 | -61 |
| Seven Rivers | 3,262 | -301 |
| Queen | 3,688 | -727 |
| Grayburg | 4,094 | -1,133 |
| San Andres | 4,533 | -1,572 |
| Glorieta | 5,417 | -2,456 |
| Clear Fork | 6,461 | -3,500 |
| Holt | — |
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/00349021, documented in the API reference.