WELL · 42-329-44348 · DISTRICT 8
Thunderbird a 50-51 #4301H
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Thunderbird A 50-51 #4301H (API 42-329-44348) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed January 16, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 1, 2020, permitted to 9,500 ft.
It was permitted by De3 Operating LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.
Its lease has reported 725K barrels of oil and 2.44M mcf of gas since September 2020, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by DE3 Operating LLC; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed May 4, 2026 · 15,618 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 | DE3 Operating LLCJul 1, 2020 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 2
- permits on file
- Jul 1, 2020
- last permit issued
- Jan 16, 2021
- completed
- 725K
- cumulative oil, bbl
- 2.44M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 16, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.019468, -101.925532
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Midland 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 |
|---|---|---|---|---|---|---|
| Thunderbird a 50-51 O-10-55233 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 2 | 725K | 2.44M | Sep 2020 – Jul 2026 |
Gas, mcf lease total
Last 12 months 310,680 · prior 12 447,211(-31%)
Oil, barrels lease total
Last 12 months 36,800 · prior 12 47,329(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1DE3 Operating LLCJan 2021 → May 2021
- 2Pioneer Natural Res. USA, Inc.Jun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 864110-98 | Drill | DE3 Operating LLC | Jul 24, 2020 | Jul 1, 2020 | Jul 30, 2020 | 9,500 |
| 864110-99 | Drill | DE3 Operating LLC | Jun 30, 2020 | Jul 1, 2020 | — | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-55233 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,715 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,715 |
| Rustler | 1,764 | 951 |
| Yates | 2,580 | 135 |
| Seven Rivers | 2,793 | -78 |
| Queen | 3,442 | -727 |
| Grayburg | 4,013 | -1,298 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,245 | -1,530 |
| Glorieta | 5,276 | -2,561 |
| Clear ForkCLEARFORK | 6,607 | -3,892 |
| Spraberry | 7,449 | -4,734 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,672 | 19,666 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,638 | 17.5 | 1,350 S |
| 9.625 | 8,782 | 12.25 | 680 S |
| 5.5 | 19,780 | 8.5 | 2,980 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 29, 2021 | Mar 24, 2021 | Yes |
| 00 | Jan 22, 2021 | Dec 16, 2020 | 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 42-329-44348 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-44348 → 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.
Thunderbird B 50-5142-329-44346
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,715 |
| Rustler | 1,762 | 953 |
| Yates | 2,570 | 145 |
| Seven Rivers | 2,792 | -77 |
| Queen | 3,439 | -724 |
| Grayburg | 4,012 | -1,297 |
| San Andres | 4,242 | -1,527 |
| Glorieta | 5,299 | -2,584 |
10 TOPS · FIRST 8
Thunderbird a 50-5142-329-44349
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,715 |
| Rustler | 1,759 | 956 |
| Yates | 2,576 | 139 |
| Seven Rivers | 2,791 | -76 |
| Queen | 3,442 | -727 |
| Grayburg | 4,015 | -1,300 |
| San Andres | 4,245 | -1,530 |
| Glorieta | 5,282 | -2,567 |
10 TOPS · FIRST 8
Thunderbird B 50-5142-329-44347
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,715 |
| Rustler | 1,760 | 955 |
| Yates | 2,571 | 144 |
| Seven Rivers | 2,789 | -74 |
| Queen | 3,442 | -727 |
| Grayburg | 4,011 | -1,296 |
| San Andres | 4,242 | -1,527 |
| Glorieta | 5,270 | -2,555 |
10 TOPS · FIRST 8
Thunderbird C 50-5142-329-44353
0.1 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,712 |
| Rustler | 1,762 | 950 |
| Yates | 2,569 | 143 |
| Seven Rivers | 2,790 | -78 |
| Queen | 3,432 | -720 |
| Grayburg | 3,996 | -1,284 |
| San Andres | 4,232 | -1,520 |
| Glorieta | 5,256 | -2,544 |
10 TOPS · FIRST 8
Thunderbird D 50-5142-329-44352
0.1 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,712 |
| Rustler | 1,762 | 950 |
| Yates | 2,571 | 141 |
| Seven Rivers | 2,786 | -74 |
| Queen | 3,431 | -719 |
| Grayburg | 3,996 | -1,284 |
| San Andres | 4,230 | -1,518 |
| Glorieta | 5,243 | -2,531 |
10 TOPS · FIRST 8
Thunderbird D 50-5142-329-44351
0.1 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,712 |
| Rustler | 1,763 | 949 |
| Yates | 2,574 | 138 |
| Seven Rivers | 2,786 | -74 |
| Queen | 3,430 | -718 |
| Grayburg | 3,997 | -1,285 |
| San Andres | 4,228 | -1,516 |
| Glorieta | 5,250 | -2,538 |
10 TOPS · FIRST 8
Thunderbird F 50-5142-329-44661
0.3 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,325 | 1,414 |
| Rustler | 1,736 | 1,003 |
| Yates | 2,579 | 160 |
| Seven Rivers | 2,831 | -92 |
| Queen | 3,532 | -793 |
| Grayburg | 3,995 | -1,256 |
| San Andres | 4,275 | -1,536 |
| Clear Fork | 6,559 | -3,820 |
10 TOPS · FIRST 8
Thunderbird F 50-5142-329-44662
0.3 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,320 | 1,419 |
| Rustler | 1,733 | 1,006 |
| Yates | 2,571 | 168 |
| Seven Rivers | 2,830 | -91 |
| Queen | 3,530 | -791 |
| Grayburg | 3,993 | -1,254 |
| San Andres | 5,555 | -2,816 |
| Clear Fork | 6,574 | -3,835 |
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/32944348, documented in the API reference.