WELL · 42-461-42658 · DISTRICT 7
Neff East K 9-45 #2411H
Upton County · Spraberry (Trend Area) field · Shut IN · Horizontal
Neff East K 9-45 #2411H (API 42-461-42658) is a horizontal well in Upton County operated by Diamondback E&P LLC, completed July 22, 2025 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended 3 times), issued January 9, 2024, permitted to 10,605 ft.
It was permitted by De IV Operating, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 509K barrels of oil and 877K mcf of gas since July 2025, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by DE IV Operating, 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 | DE IV Operating, LLCJan 9, 2024 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,605
- total depth, ft
- 4
- permits on file
- Jan 9, 2024
- last permit issued
- Jul 22, 2025
- completed
- 509K
- cumulative oil, bbl
- 877K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 22, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.589501, -102.084443
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Upton 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Neff East K 9-45 O-9-23418 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 509K | 877K | Jul 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 508,926 · prior 12 0
Gas, mcf lease total
Last 12 months 877,485 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCJul 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 896330-96 | Drill | DE IV Operating, LLC | Dec 3, 2024 | Jan 9, 2024 | — | 10,605 |
| 896330-97 | Drill | DE IV Operating, LLC | Jun 5, 2024 | Jan 9, 2024 | — | 10,605 |
| 896330-98 | Drill | DE IV Operating, LLC | Jan 29, 2024 | Jan 9, 2024 | — | 10,605 |
| 896330-99 | Drill | DE IV Operating, LLC | Jan 4, 2024 | Jan 9, 2024 | Feb 7, 2025 | 10,605 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-23418 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,827 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,659 | 168 |
| Grayburg | 4,484 | -1,657 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,813 | -1,986 |
| Spraberry | 7,699 | -4,872 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,353 | 24,073 | Perforated |
| 8,353 | 34,058 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 501 | 17.5 | 445 S |
| 9.625 | 7,545 | 12.25 | 1,505 S |
| 6 | 24,098 | 7.875 | 2,240 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 | Mar 27, 2026 | Feb 19, 2026 | — |
| 00 | Jan 30, 2026 | Oct 20, 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 42-461-42658 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-42658 → 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.
Neff East J 9-4542-461-42657
0.0 KM · DE IV Operating, LLC · Section with this well →
| Yates | 2,639 | 188 |
| Grayburg | 4,482 | -1,655 |
| San Andres | 4,753 | -1,926 |
| Clear Fork | 6,857 | -4,030 |
| Spraberry | 7,711 | -4,884 |
| Wolfcamp | — | |
| Fusselman | — | |
| Ellenburger | — |
10 TOPS · FIRST 8
Neff East K 9-4542-461-42659
0.0 KM · DE IV Operating, LLC · Section with this well →
| Yates | 2,683 | 144 |
| Grayburg | 4,099 | -1,272 |
| San Andres | 5,288 | -2,461 |
| Clear Fork | 6,782 | -3,955 |
| Spraberry | 7,576 | -4,749 |
| Wolfcamp | 9,175 | -6,348 |
| Ellenburger | — | |
| Fusselman | — |
10 TOPS · FIRST 8
Neff East J 9-4542-461-42656
0.0 KM · DE IV Operating, LLC · Section with this well →
| San Andres | 5,253 | -2,426 |
| Glorieta | 6,060 | -3,233 |
| Clear Fork | 6,867 | -4,040 |
| Spraberry | 7,719 | -4,892 |
| Wolfcamp | 9,190 | -6,363 |
| Devonian | — | |
| Fusselman | — | |
| Grayburg | — |
10 TOPS · FIRST 8
Neff East J 9-4542-461-42655
0.0 KM · DE IV Operating, LLC · Section with this well →
| Grayburg | 4,470 | -1,642 |
| San Andres | 4,793 | -1,965 |
| Clear Fork | 6,833 | -4,005 |
| Spraberry | 7,682 | -4,854 |
| Wolfcamp | 9,175 | -6,347 |
| Yates | — | |
| Devonian | — | |
| Ellenburger | — |
10 TOPS · FIRST 8
Neff East I 9-4542-461-42654
0.0 KM · DE IV Operating, LLC · Section with this well →
| Yates | 2,640 | 187 |
| Grayburg | 4,484 | -1,657 |
| San Andres | 4,757 | -1,930 |
| Spraberry | 7,723 | -4,896 |
| Wolfcamp | 8,912 | -6,085 |
| Ellenburger | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Neff East L 9-4542-461-42660
0.2 KM · DE IV Operating, LLC · Section with this well →
| Yates | 2,741 | 85 |
| Grayburg | 4,101 | -1,275 |
| San Andres | 5,507 | -2,681 |
| Spraberry | 7,634 | -4,808 |
| Wolfcamp | — | |
| Ellenburger | — | |
| Devonian | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Neff East M 9-4542-461-42661
0.2 KM · DE IV Operating, LLC · Section with this well →
| Devonian | — | |
| Ellenburger | — | |
| Fusselman | — | |
| Grayburg | — | |
| San Andres | — | |
| Spraberry | — | |
| Strawn | — | |
| Wolfcamp | — |
9 TOPS · FIRST 8
Neff East M 9-4542-461-42663
0.2 KM · DE IV Operating, LLC · Section with this well →
| Devonian | — | |
| Ellenburger | — | |
| Fusselman | — | |
| Grayburg | — | |
| San Andres | — | |
| Spraberry | — | |
| Strawn | — | |
| Wolfcamp | — |
9 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/46142658, documented in the API reference.