WELL · 42-329-40988 · DISTRICT 8
Tubb 21 U Unit #6H
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Tubb 21 U Unit #6H (API 42-329-40988) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed August 29, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 31, 2016, permitted to 9,472 ft.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 2.37M barrels of oil and 2.86M mcf of gas since January 2017, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
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.May 31, 2016 |
- 9,472
- total depth, ft
- 2
- permits on file
- May 31, 2016
- last permit issued
- Aug 29, 2017
- completed
- 2.37M
- cumulative oil, bbl
- 2.86M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2017 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 29, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.934260, -102.091680
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tubb 21 U Unit O-10-48850 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 3 | 2.37M | 2.86M | Jan 2017 – Jul 2026 |
Oil, barrels lease total
Last 12 months 108,101 · prior 12 95,767(+13%)
Gas, mcf lease total
Last 12 months 325,505 · prior 12 147,664(+120%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Aug 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 815950-98 | Drill | Pioneer Natural Res. USA, Inc. | Jun 13, 2017 | May 31, 2016 | Sep 18, 2016 | 11,000 |
| 815950-99 | Drill | Pioneer Natural Res. USA, Inc. | May 27, 2016 | May 31, 2016 | Sep 18, 2016 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 29, 2017 | Tubb 21 U Unit O-10-48850 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Producing | 9,472 |
Formation tops
As filed on W-2/G-1. Subsea from 2,828 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 728 | 2,100 |
| Santa Rosa | 895 | 1,933 |
| Yates | 2,767 | 61 |
| Yates | 2,809 | 19 |
| Seven Rivers | 3,060 | -232 |
| Seven Rivers | 3,134 | -306 |
| Queen | 3,817 | -989 |
| Queen | 3,910 | -1,082 |
| Grayburg | 4,431 | -1,603 |
| Grayburg | 4,551 | -1,723 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,563 | -1,735 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,731 | -1,903 |
| Clear ForkCLEARFORK | 6,990 | -4,162 |
| Clear ForkCLEARFORK | 6,994 | -4,166 |
| Spraberry | 6,994 | -4,166 |
| Spraberry | 7,843 | -5,015 |
| SpraberrySPRABERRY UPPER-DEAN | 9,184 | -6,356 |
| Glorieta | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,787 | 19,545 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,745 | 17.5 | 1,778 S |
| 9.625 | 7,732 | 12.25 | 804 S |
| 5.5 | 19,537 | 6.75 | 726 S |
| 4.5 | 19,675 | 6.75 | 726 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 12, 2018 | Dec 18, 2017 | Yes |
| 00 | Sep 11, 2017 | Jun 28, 2017 | 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 42-329-40988 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-40988 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Tubb 21 L Unit42-329-40987
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 894 | 1,934 |
| Yates | 1,320 | 1,508 |
| Seven Rivers | 3,025 | -197 |
| Queen | 3,777 | -949 |
| Grayburg | 4,399 | -1,571 |
| San Andres | 4,531 | -1,703 |
| Clear Fork | 6,963 | -4,135 |
| Spraberry | 7,844 | -5,016 |
11 TOPS · FIRST 8
Tubb 21 U Unit42-329-40986
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 912 | 1,918 |
| Yates | 2,775 | 55 |
| Seven Rivers | 3,061 | -231 |
| Queen | 3,809 | -979 |
| Grayburg | 4,420 | -1,590 |
| San Andres | 4,554 | -1,724 |
| Clear Fork | 6,991 | -4,161 |
| Spraberry | 7,851 | -5,021 |
10 TOPS · FIRST 8
Tubb 21 L Unit42-329-40985
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 923 | 1,907 |
| Yates | 2,766 | 64 |
| Seven Rivers | 3,074 | -244 |
| Queen | 3,810 | -980 |
| Grayburg | 4,415 | -1,585 |
| San Andres | 4,562 | -1,732 |
| Clear Fork | 6,999 | -4,169 |
| Spraberry | 7,844 | -5,014 |
10 TOPS · FIRST 8
Tubb 21 U Unit42-329-40984
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 915 | 1,913 |
| Yates | 2,754 | 74 |
| Seven Rivers | 3,058 | -230 |
| Queen | 3,810 | -982 |
| Grayburg | 4,398 | -1,570 |
| San Andres | 4,555 | -1,727 |
| Clear Fork | 6,994 | -4,166 |
| Spraberry | 7,850 | -5,022 |
10 TOPS · FIRST 8
Tubb 21 L Unit42-329-40983
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 908 | 1,920 |
| Yates | 2,747 | 81 |
| Seven Rivers | 3,053 | -225 |
| Queen | 3,835 | -1,007 |
| Grayburg | 4,412 | -1,584 |
| San Andres | 4,577 | -1,749 |
| Clear Fork | 6,993 | -4,165 |
| Spraberry | 7,848 | -5,020 |
10 TOPS · FIRST 8
Tubb-Vaughn 21G42-329-45457
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,113 | 1,710 |
| Rustler | 1,745 | 1,078 |
| Yates | 2,754 | 69 |
| Seven Rivers | 3,049 | -226 |
| Queen | 3,800 | -977 |
| Grayburg | 4,339 | -1,516 |
| San Andres | 4,555 | -1,732 |
| Clear Fork | 6,989 | -4,166 |
16 TOPS · FIRST 8
Tubb-Vaughn 21H42-329-45458
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,113 | 1,710 |
| Rustler | 1,745 | 1,078 |
| Yates | 2,753 | 70 |
| Seven Rivers | 3,045 | -222 |
| Queen | 3,797 | -974 |
| Grayburg | 4,336 | -1,513 |
| San Andres | 4,555 | -1,732 |
| Clear Fork | 6,984 | -4,161 |
10 TOPS · FIRST 8
Tubb-Vaughn 21I42-329-45459
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,113 | 1,710 |
| Rustler | 1,745 | 1,078 |
| Yates | 2,750 | 73 |
| Seven Rivers | 3,043 | -220 |
| Queen | 3,802 | -979 |
| Grayburg | 4,343 | -1,520 |
| San Andres | 4,554 | -1,731 |
| Clear Fork | 6,984 | -4,161 |
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/32940988, documented in the API reference.