TEXAS · WELLS · UPTON COUNTY · DARLING NORTH B LEASE · API 42-461-39115 · DISTRICT 6E
Darling North B #1
Upton County · Spraberry (Trend Area) field · Shut In · Vertical
Darling North B #1 (API 42-461-39115) is a well in Upton County operated by Diamondback E&P LLC, completed March 21, 2014 and listed as shut in on the RRC schedule, shut in February 1, 2024.
The RRC has issued one drilling permit (amended once), issued November 6, 2013, permitted to 10,392 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, San Andres, Wolfcamp, Strawn.
Its lease has reported 82.6K barrels of oil and 699K mcf of gas since March 2014, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
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 | Devon Energy Production Co, L.P.Nov 6, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,392
- total depth, ft
- 2
- permits on file
- Nov 6, 2013
- last permit issued
- Mar 21, 2014
- completed
- 82.6K
- cumulative oil, bbl
- 699K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 21, 2014
- Shut in
- Feb 1, 2024
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 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 |
|---|---|---|---|---|---|---|
| Darling North B O-9-18850 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 82.6K | 699K | Mar 2014 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,814 · prior 12 3,366(+13%)
Gas, mcf lease total
Last 12 months 7,128 · prior 12 4,855(+47%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Mar 2014 → Jul 2016
- 2FDL Operating, LLCAug 2016 → Jun 2019
- 3Firebird Energy LLCJul 2019 → Nov 2022
- 4Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 772764-98 | Drill | Devon Energy Production Co, L.P. | Mar 5, 2014 | Nov 6, 2013 | Jan 6, 2014 | 11,000 |
| 772764-99 | Drill | Devon Energy Production Co, L.P. | Oct 29, 2013 | Nov 6, 2013 | Jan 6, 2014 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 21, 2014 | Darling North B O-9-18850 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut In · shut in Feb 1, 2024 | 10,392 |
Formation tops
As filed on W-2/G-1. Subsea from 2,899 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,099 | -200 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,812 | -1,913 |
| Wolfcamp | 8,715 | -5,816 |
| Strawn | 9,752 | -6,853 |
| Atoka | 10,228 | -7,329 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Grayburg | — | — |
| Spraberry | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,569 | 10,144 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 439 | 17.5 | 495 S |
| 8.625 | 4,758 | 11 | 1,140 S |
| 5.5 | 10,364 | 7.875 | 1,220 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 | Apr 16, 2015 | Mar 3, 2015 | 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 42-461-39115 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39115 → 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/46139115, documented in the API reference.