WELL · 42-003-47331 · DISTRICT 8
UL BLK 6 Ddu A #101LS
Andrews County · Spraberry (Trend Area) field · Horizontal
UL Blk 6 Ddu A #101LS (API 42-003-47331) is a horizontal well in Andrews County operated by Diamondback E&P LLC, completed February 11, 2021.
The RRC has issued one drilling permit, issued February 8, 2016, permitted to 10,000 ft.
It was permitted by Ajax Resources, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 20 formation tops, including Clear Fork, Spraberry, Canyon, Dean.
Its 2 leases have reported 4.07M barrels of oil and 3.4M mcf of gas since April 2016, last reporting in July 2026. The leases carry 16 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Ajax Resources, LLC; 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 | Ajax Resources, LLCFeb 8, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 1
- permits on file
- Feb 8, 2016
- last permit issued
- Feb 11, 2021
- completed
- 4.07M
- cumulative oil, bbl
- 3.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 11, 2021
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 16 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| UL BLK 6 Ddu A O-10-47890 | Spraberry (Trend Area) | Diamondback E&P LLC | 15 | 4.05M | 3.37M | Apr 2016 – Jul 2026 |
| UL Cottonflat O-10-57137 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 25.6K | 25.1K | Jul 2022 – Jul 2026 |
Oil, barrels lease total
Last 12 months 193,357 · prior 12 184,050(+5%)
Gas, mcf lease total
Last 12 months 240,095 · prior 12 258,554(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Ajax Resources, LLCApr 2016 → Oct 2018
- 2Diamondback E&P LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 813388-99 | Drill | Ajax Resources, LLC | Jan 21, 2016 | Feb 8, 2016 | Feb 14, 2016 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-47890 | — | — | — | — |
| — | — O-10-47890 | — | — | — | — |
| — | — O-10-57137 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,965 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,474 | -2,509 |
| Spraberry | 8,369 | -4,404 |
| Canyon | — | — |
| Dean | — | — |
| Devonian | — | — |
| Fusselman | — | — |
| Glorieta | — | — |
| Grayburg | — | — |
| Holt | — | — |
| McKee | — | — |
| Pennsylvanian | — | — |
| Permian (undifferentiated)PERMIAN DETRITAL | — | — |
| Queen | — | — |
| San AndresSAN ANDRES - CO2 FLOOD, HIGH FLO | — | — |
| Seven Rivers | — | — |
| Strawn | — | — |
| Tubb | — | — |
| Wichita-AlbanyWICHITA ALBANY | — | — |
| Wolfcamp | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,052 | 14,639 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,810 | 17.5 | 1,585 S |
| 9.625 | 8,570 | 12.25 | 494 S |
| 5.5 | 14,822 | 8.5 | 1,583 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 | Jul 12, 2022 | Apr 19, 2021 | — |
| 00 | May 6, 2021 | Apr 19, 2021 | — |
| 00 | Dec 21, 2017 | Dec 15, 2017 | Yes |
| 00 | Oct 28, 2016 | Oct 24, 2016 | — |
| 00 | Sep 7, 2016 | Aug 2, 2016 | 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 42-003-47331 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-47331 → 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.
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/00347331, documented in the API reference.