WELL · 42-461-40918 · DISTRICT 7
Halff-Hall 1AA #101H
Upton County · Spraberry (Trend Area) R 40 Exc field · Producing · Horizontal
Halff-Hall 1aa #101H (API 42-461-40918) is a horizontal well in Upton County operated by Pioneer Natural Res. USA Inc., completed May 4, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 27, 2018, permitted to 10,200 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 387K barrels of oil and 1.33M mcf of gas since May 2019, last reporting in July 2026.
Operator of record
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Apr 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Jul 27, 2018 |
- 10,200
- total depth, ft
- 1
- permits on file
- Jul 27, 2018
- last permit issued
- May 4, 2019
- completed
- 387K
- cumulative oil, bbl
- 1.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 4, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.403374, -101.781368
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halff-Hall 1AA O-9-20424 | Spraberry (Trend Area) R 40 Exc | Pioneer Natural Res. USA, Inc. | 1 | 387K | 1.33M | May 2019 – Jul 2026 |
Gas, mcf lease total
Last 12 months 48,610 · prior 12 308,040(-84%)
Oil, barrels lease total
Last 12 months 2,949 · prior 12 17,728(-83%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.May 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 841805-99 | Drill | Pioneer Natural Res. USA, Inc. | Jun 28, 2018 | Jul 27, 2018 | Nov 3, 2018 | 10,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-20424 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,696 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,180 | 516 |
| Grayburg | 3,709 | -1,013 |
| San AndresSAN ANDRES - SALTWATER FLOW | 3,860 | -1,164 |
| Spraberry | 6,743 | -4,047 |
| Wolfcamp | 8,339 | -5,643 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,375 | 18,977 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,166 | 17.5 | 1,225 S |
| 9.625 | 8,614 | 12.25 | 1,111 S |
| 5.5 | 19,006 | 8.5 | 2,736 S |
| 5.5 | 19,022 | 8.75 | 2,736 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 | Jan 13, 2020 | Jul 24, 2019 | — |
| 00 | Dec 20, 2019 | Aug 6, 2019 | — |
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 42-461-40918 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-40918 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Halff-Hall 1BB42-461-40919
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,179 | 517 |
| Grayburg | 3,671 | -975 |
| San Andres | 3,832 | -1,136 |
| Spraberry | 6,729 | -4,033 |
| Wolfcamp | 8,321 | -5,625 |
| Devonian | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Halff-Hall 1CC42-461-40920
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,140 | 556 |
| Grayburg | 3,718 | -1,022 |
| San Andres | 3,850 | -1,154 |
| Spraberry | 6,705 | -4,009 |
| Wolfcamp | 8,294 | -5,598 |
| Ellenburger | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Halff 1D42-461-40716
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,182 | 514 |
| Grayburg | 3,692 | -996 |
| San Andres | 3,821 | -1,125 |
| Spraberry | 6,744 | -4,048 |
| Wolfcamp | 8,340 | -5,644 |
| Ellenburger | — | |
| Devonian | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Halff 1E42-461-40717
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,186 | 510 |
| Grayburg | 3,692 | -996 |
| San Andres | 3,809 | -1,113 |
| Spraberry | 6,727 | -4,031 |
| Wolfcamp | 8,322 | -5,626 |
| Ellenburger | — | |
| Devonian | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Halff 1F42-461-40718
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,188 | 508 |
| Grayburg | 3,664 | -968 |
| San Andres | 3,787 | -1,091 |
| Spraberry | 6,717 | -4,021 |
| Wolfcamp | 8,303 | -5,607 |
| Strawn | — | |
| Devonian | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Halff 1P42-383-40114
1.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Queen | 3,093 | -395 |
| Grayburg | 3,655 | -957 |
| San Andres | 3,773 | -1,075 |
| Clear Fork | 5,832 | -3,134 |
| Spraberry | — | |
| Ellenburger | — | |
| Fusselman | — | |
| Strawn | — |
Halff 1Q42-383-40113
1.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Queen | 3,096 | -398 |
| Grayburg | 3,652 | -954 |
| San Andres | 3,776 | -1,078 |
| Clear Fork | 5,836 | -3,138 |
| Ellenburger | — | |
| Fusselman | — | |
| Strawn | — | |
| Spraberry | — |
Halff-Hall 1S42-383-40381
1.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Queen | 3,097 | -398 |
| Grayburg | 3,709 | -1,010 |
| San Andres | 3,852 | -1,153 |
| Clear Fork | 5,836 | -3,137 |
| Spraberry | 6,708 | -4,009 |
| Ellenburger | — | |
| Fusselman | — | |
| Strawn | — |
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/46140918, documented in the API reference.