WELL · 42-317-41485 · DISTRICT 8
Halsey 5 #402
Martin County · Spraberry (Trend Area) R 40 Exc field · Horizontal
Halsey 5 #402 (API 42-317-41485) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed December 26, 2018.
The RRC has issued 2 drilling permits (amended once) between 2018 and 2020, permitted to 10,500 ft.
It was permitted by Lario Oil & Gas 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 2 leases have reported 312K barrels of oil and 878K mcf of gas since December 2018, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Lario Oil & Gas Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 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 | Lario Oil & Gas CompanyAug 14, 2020 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,500
- total depth, ft
- 3
- permits on file
- Aug 14, 2020
- last permit issued
- Dec 26, 2018
- completed
- 312K
- cumulative oil, bbl
- 878K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 26, 2018
- Shut in
- —
- Plugged
- —
Surface location
32.170591, -101.741681
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 2 leases 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 |
|---|---|---|---|---|---|---|
| Halsey 5 O-10-57936 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 122K | 527K | Nov 2020 – Jul 2026 |
| Halsey 5 O-10-52643 | Spraberry (Trend Area) R 40 Exc | Diamondback E&P LLC | 1 | 190K | 351K | Dec 2018 – May 2023 |
Oil, barrels lease total
Last 12 months 17,237 · prior 12 16,539(+4%)
Gas, mcf lease total
Last 12 months 100,416 · prior 12 94,973(+6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lario Oil & Gas CompanyDec 2018 → Feb 2023
- 2Diamondback E&P LLCMar 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 864510-99 | Field transfer | Lario Oil & Gas Company | Jul 31, 2020 | Aug 14, 2020 | Aug 16, 2018 | 9,668 |
| 840449-98 | Drill | Lario Oil & Gas Company | Jul 27, 2018 | May 30, 2018 | — | 10,500 |
| 840449-99 | Drill | Lario Oil & Gas Company | May 23, 2018 | May 30, 2018 | Aug 16, 2018 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-52643 | — | — | — | — |
| — | — O-10-57936 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,586 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 648 | 1,938 |
| Yates | 2,098 | 488 |
| Queen | 2,969 | -383 |
| Grayburg | 3,581 | -995 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 3,779 | -1,193 |
| Spraberry | 6,800 | -4,214 |
| Dean | 8,134 | -5,548 |
| Wolfcamp | 8,314 | -5,728 |
| Cisco | — | — |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,880 | 19,750 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,395 | 17.5 | 1,120 S |
| 9.625 | 8,616 | 12.25 | 985 S |
| 5.5 | 19,819 | 8.5 | 3,710 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 2, 2026 | Apr 16, 2026 | — |
| 00 | Sep 14, 2023 | Aug 17, 2023 | — |
| 00 | Dec 6, 2022 | Sep 12, 2022 | — |
| 00 | Dec 18, 2019 | Sep 23, 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 42-317-41485 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-41485 → 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.
Halsey 442-317-41187
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 649 | 1,938 |
| Yates | 2,100 | 487 |
| Queen | 2,971 | -384 |
| Grayburg | 3,582 | -995 |
| San Andres | 3,780 | -1,193 |
| Spraberry | 6,800 | -4,213 |
| Dean | 8,132 | -5,545 |
| Wolfcamp | 8,312 | -5,725 |
10 TOPS · FIRST 8
VLT Colt Unit42-317-44388
0.3 KM · Chevron U. S. A. Inc. · Section with this well →
| Santa Rosa | 706 | 1,860 |
| Yates | 2,084 | 482 |
| Queen | 2,936 | -370 |
| Grayburg | 3,206 | -640 |
| San Andres | 3,434 | -868 |
| Spraberry | 6,779 | -4,213 |
| Wolfcamp | 8,295 | -5,729 |
| Dean | — |
10 TOPS · FIRST 8
VLT Colt Unit42-317-44389
0.3 KM · Chevron U. S. A. Inc. · Section with this well →
| Santa Rosa | 740 | 1,826 |
| Yates | 2,091 | 475 |
| Queen | 2,940 | -374 |
| Grayburg | 3,199 | -633 |
| San Andres | 3,413 | -847 |
| Spraberry | 6,777 | -4,211 |
| Wolfcamp | 8,284 | -5,718 |
| Cisco | — |
10 TOPS · FIRST 8
VLT Colt Unit42-317-41665
0.6 KM · Chevron U. S. A. Inc. · Section with this well →
| Santa Rosa | 780 | 1,828 |
| Santa Rosa | 780 | 1,828 |
| Rustler | 1,355 | 1,253 |
| Rustler | 1,355 | 1,253 |
| Tansill | 1,967 | 641 |
| Tansill | 1,967 | 641 |
| Yates | 2,109 | 499 |
| Yates | 2,109 | 499 |
32 TOPS · FIRST 8
VLT Browning Stalker Unit42-317-41663
0.6 KM · Brammer Engineering, Inc. · Section with this well →
| Santa Rosa | 780 | 1,829 |
| Rustler | 1,357 | 1,252 |
| Tansill | 1,967 | 642 |
| Yates | 2,124 | 485 |
| Seven Rivers | 2,327 | 282 |
| Queen | 2,939 | -330 |
| Grayburg | 3,234 | -625 |
| San Andres | 3,468 | -859 |
20 TOPS · FIRST 8
VLT Browning Medallion Unit42-317-41666
0.6 KM · Brammer Engineering, Inc. · Section with this well →
| Santa Rosa | 779 | 1,831 |
| Yates | 2,111 | 499 |
| Queen | 2,968 | -358 |
| Grayburg | 3,224 | -614 |
| San Andres | 3,464 | -854 |
| Spraberry | 6,859 | -4,249 |
| Dean | 8,174 | -5,564 |
| Wolfcamp | 8,446 | -5,836 |
10 TOPS · FIRST 8
VLT Browning Hunter Unit42-317-41668
0.6 KM · Chevron U. S. A. Inc. · Section with this well →
| Santa Rosa | 783 | 1,827 |
| Santa Rosa | 783 | 1,827 |
| Rustler | 1,349 | 1,261 |
| Tansill | 1,974 | 636 |
| Yates | 2,105 | 505 |
| Yates | 2,105 | 505 |
| Seven Rivers | 2,337 | 273 |
| Queen | 2,954 | -344 |
25 TOPS · FIRST 8
Halsey 942-317-42639
0.7 KM · Lario Oil & Gas Company · Section with this well →
| Yates | 2,024 | 528 |
| Queen | 2,885 | -333 |
| Grayburg | 3,434 | -882 |
| San Andres | 3,689 | -1,137 |
| Spraberry | 6,721 | -4,169 |
| Dean | 8,042 | -5,490 |
| Wolfcamp | 8,235 | -5,683 |
| Santa Rosa | — |
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/31741485, documented in the API reference.