TEXAS · WELLS · MARTIN COUNTY · NAIL-BURLEY 6U LEASE · API 42-317-46718 · DISTRICT 7B
Nail-Burley 6U #721H
Martin County · Spraberry (Trend Area) field · Producing · Horizontal
Nail-Burley 6u #721H (API 42-317-46718) is a horizontal well in Martin County operated by Pioneer Natural Res. USA Inc., completed July 3, 2026 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 4, 2025, permitted to 8,520 ft.
Completion filings report 18 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
No lease production has been reported under this well’s leases.
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 | none |
| Latest permit | Pioneer Natural Res. USA, Inc.Apr 4, 2025 |
- 8,520
- total depth, ft
- 1
- permits on file
- Apr 4, 2025
- last permit issued
- Jul 3, 2026
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2025 THROUGH —
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 3, 2026
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
32.105138, -102.070559 NAD27, as filed
32.105258, -102.070976 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Martin County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| Nail-Burley 6U O-10-64908 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 0 | 0 | Dec 2025 – — |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 906561-99 | Drill | Pioneer Natural Res. USA, Inc. | Mar 7, 2025 | Apr 4, 2025 | Oct 14, 2025 | 10,560 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 3, 2026 | Nail-Burley 6U O-10-64908 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Producing | 8,520 |
Formation tops
As filed on W-2/G-1. Subsea from 2,854 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,319 | 1,535 |
| Yates | 2,834 | 20 |
| Queen | 3,806 | -952 |
| Grayburg | 4,348 | -1,494 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,563 | -1,709 |
| Clear ForkCLEARFORK | 6,772 | -3,918 |
| Spraberry | 7,816 | -4,962 |
| Cisco | — | — |
| Dean | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Mississippian | — | — |
| Pennsylvanian | — | — |
| Precambrian (Undifferentiated) | — | — |
| Silurian (undifferentiated)SILURIAN | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,706 | 24,133 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,749 | 17.5 | 1,850 S |
| 9.625 | 6,054 | 12.25 | 1,402 S |
| 5.5 | 24,407 | 6.75 | 1,210 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 29, 2026 | Sep 1, 2026 | — |
| 00 | May 12, 2026 | Mar 19, 2026 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 13, 2026. While drilling (MWD). These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Measure While Drilling (MWD)Spans Santa Rosa, Yates, Queen, Grayburg, San Andres, Clear Fork, Spraberry | TIFF | 1,765 to 22,659 | Jan 13, 2026 | 1.24 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-317-46718 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-46718 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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.
Nail-Burley 6T42-317-46717
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,319 | 1,535 |
| Yates | 2,829 | 25 |
| Queen | 3,814 | -960 |
| Grayburg | 4,354 | -1,500 |
| San Andres | 4,574 | -1,720 |
| Clear Fork | 6,772 | -3,918 |
| Spraberry | 7,828 | -4,974 |
| Dean | 9,107 | -6,253 |
12 TOPS · FIRST 8
Nail-Burley 6V42-317-46719
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,319 | 1,535 |
| Yates | 2,830 | 24 |
| Queen | 3,807 | -953 |
| Grayburg | 4,352 | -1,498 |
| San Andres | 4,560 | -1,706 |
| Spraberry | 7,810 | -4,956 |
| Dean | 9,113 | -6,259 |
| Cisco | — |
10 TOPS · FIRST 8
Nail-Burley 6S42-317-46716
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,319 | 1,535 |
| Yates | 2,834 | 20 |
| Queen | 3,810 | -956 |
| Grayburg | 4,345 | -1,491 |
| San Andres | 4,566 | -1,712 |
| Spraberry | 7,826 | -4,972 |
| Pennsylvanian | — | |
| Cisco | — |
10 TOPS · FIRST 8
Nail-Burley 6L42-317-46707
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,322 | 1,535 |
| Yates | 2,831 | 26 |
| Queen | 3,812 | -955 |
| Grayburg | 4,361 | -1,504 |
| San Andres | 4,578 | -1,721 |
| Clear Fork | 6,756 | -3,899 |
| Spraberry | 7,817 | -4,960 |
| Cisco | — |
11 TOPS · FIRST 8
Nail-Burley 6M42-317-46708
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,322 | 1,535 |
| Yates | 2,830 | 27 |
| Queen | 3,816 | -959 |
| Grayburg | 4,368 | -1,511 |
| San Andres | 4,587 | -1,730 |
| Clear Fork | 6,747 | -3,890 |
| Spraberry | 7,812 | -4,955 |
| Dean | 9,117 | -6,260 |
11 TOPS · FIRST 8
Nail-Burley 6N42-317-46709
0.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,322 | 1,535 |
| Yates | 2,835 | 22 |
| Queen | 3,816 | -959 |
| Grayburg | 4,370 | -1,513 |
| San Andres | 4,587 | -1,730 |
| Spraberry | 7,811 | -4,954 |
| Dean | — | |
| Cisco | — |
10 TOPS · FIRST 8
Nail-Burley 6O42-317-46710
0.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,321 | 1,535 |
| Yates | 2,830 | 26 |
| Queen | 3,789 | -933 |
| Grayburg | 4,320 | -1,464 |
| San Andres | 4,584 | -1,728 |
| Spraberry | 7,819 | -4,963 |
| Pennsylvanian | — | |
| Cisco | — |
10 TOPS · FIRST 8
Nail-Burley 6P42-317-46711
0.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 1,321 | 1,535 |
| Yates | 2,843 | 13 |
| Queen | 3,794 | -938 |
| Grayburg | 4,334 | -1,478 |
| San Andres | 4,596 | -1,740 |
| Spraberry | 7,813 | -4,957 |
| Dean | 9,106 | -6,250 |
| Wolfcamp | — |
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/31746718, documented in the API reference.