WELL · 42-173-38506 · DISTRICT 8
Houston-Herzog EC12A #301H
Glasscock County · Spraberry (Trend Area) field · Producing · Horizontal
Houston-Herzog Ec12a #301H (API 42-173-38506) is a horizontal well in Glasscock County operated by Pioneer Natural Res. USA Inc., completed November 17, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 5, 2021, permitted to 10,125 ft.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.
Its lease has reported 159K barrels of oil and 238K mcf of gas since November 2021, last reporting in July 2026.
Operator of record
Spring, TX · P-5 Y, filed May 4, 2026 · 15,619 permits on file · (972) 598-8150
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.Aug 5, 2021 |
- 10,125
- total depth, ft
- 1
- permits on file
- Aug 5, 2021
- last permit issued
- Nov 17, 2021
- completed
- 159K
- cumulative oil, bbl
- 238K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2021 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 17, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.034939, -101.741317
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Glasscock 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 |
|---|---|---|---|---|---|---|
| Houston-Herzog EC12A O-10-56691 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 159K | 238K | Nov 2021 – Jul 2026 |
Oil, barrels lease total
Last 12 months 10,319 · prior 12 23,409(-56%)
Gas, mcf lease total
Last 12 months 21,878 · prior 12 46,170(-53%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Nov 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 871038-99 | Drill | Pioneer Natural Res. USA, Inc. | Jul 8, 2021 | Aug 5, 2021 | Aug 21, 2021 | 10,125 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-56691 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,648 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,033 | 1,615 |
| Rustler | 1,416 | 1,232 |
| Yates | 2,194 | 454 |
| Seven Rivers | 2,423 | 225 |
| Queen | 3,064 | -416 |
| Grayburg | 3,528 | -880 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,726 | -1,078 |
| Clear ForkCLEARFORK | 5,718 | -3,070 |
| Spraberry | 6,869 | -4,221 |
| Glorieta | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,265 | 18,246 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,286 | 17.5 | 1,300 S |
| 9.625 | 5,251 | 12.25 | 1,426 S |
| 5.5 | 18,271 | 6.75 | 1,027 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 | Feb 28, 2022 | Feb 3, 2022 | 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 42-173-38506 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-38506 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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.
Houston-Herzog EC12B42-173-38507
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,035 | 1,613 |
| Rustler | 1,414 | 1,234 |
| Yates | 2,194 | 454 |
| Seven Rivers | 2,421 | 227 |
| Queen | 3,063 | -415 |
| Grayburg | 3,516 | -868 |
| San Andres | 3,718 | -1,070 |
| Clear Fork | 5,712 | -3,064 |
10 TOPS · FIRST 8
Houston-Herzog EC12X42-173-38040
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 780 | 1,862 |
| Yates | 2,178 | 464 |
| Seven Rivers | 2,396 | 246 |
| Queen | 3,051 | -409 |
| Grayburg | 3,496 | -854 |
| San Andres | 3,703 | -1,061 |
| Clear Fork | 5,705 | -3,063 |
| Spraberry | 6,844 | -4,202 |
10 TOPS · FIRST 8
Houston-Herzog EC12W42-173-38038
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 795 | 1,847 |
| Yates | 2,176 | 466 |
| Seven Rivers | 2,395 | 247 |
| Queen | 3,063 | -421 |
| Grayburg | 3,490 | -848 |
| San Andres | 3,698 | -1,056 |
| Clear Fork | 5,693 | -3,051 |
| Spraberry | 6,842 | -4,200 |
10 TOPS · FIRST 8
Houston-Herzog EC12V42-173-38036
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 786 | 1,858 |
| Yates | 2,173 | 471 |
| Seven Rivers | 2,404 | 240 |
| Queen | 3,054 | -410 |
| Grayburg | 3,499 | -855 |
| San Andres | 3,712 | -1,068 |
| Clear Fork | 5,698 | -3,054 |
| Spraberry | 6,854 | -4,210 |
10 TOPS · FIRST 8
Allen-Newman 12C42-173-38289
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 826 | 1,817 |
| Rustler | 1,374 | 1,269 |
| Yates | 2,180 | 463 |
| Seven Rivers | 2,410 | 233 |
| Queen | 3,053 | -410 |
| Grayburg | 3,505 | -862 |
| San Andres | 3,704 | -1,061 |
| Clear Fork | 5,702 | -3,059 |
11 TOPS · FIRST 8
Allen-Newman 12B42-173-38288
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 826 | 1,817 |
| Rustler | 1,373 | 1,270 |
| Yates | 2,186 | 457 |
| Seven Rivers | 2,423 | 220 |
| Queen | 3,049 | -406 |
| Grayburg | 3,501 | -858 |
| San Andres | 3,700 | -1,057 |
| Clear Fork | 5,725 | -3,082 |
10 TOPS · FIRST 8
Allen-Newman 12A42-173-38287
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 826 | 1,817 |
| Rustler | 1,386 | 1,257 |
| Yates | 2,187 | 456 |
| Seven Rivers | 2,429 | 214 |
| Queen | 3,054 | -411 |
| Grayburg | 3,511 | -868 |
| San Andres | 3,710 | -1,067 |
| Clear Fork | 5,723 | -3,080 |
10 TOPS · FIRST 8
Houston-Herzog E12E42-173-38037
0.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 795 | 1,848 |
| Yates | 2,181 | 462 |
| Seven Rivers | 2,403 | 240 |
| Queen | 3,073 | -430 |
| Grayburg | 3,496 | -853 |
| San Andres | 3,709 | -1,066 |
| Clear Fork | 5,688 | -3,045 |
| Spraberry | 6,822 | -4,179 |
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/17338506, documented in the API reference.