TEXAS · WELLS · MIDLAND COUNTY · WILLIS "AA" LEASE · API 42-329-35276 · DISTRICT 7B
Willis AA #1
Midland County · Spraberry (Trend Area) field · Vertical
Willis AA #1 (API 42-329-35276) is a plugged well in Midland County, plugged March 1, 2010, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued April 13, 2005, permitted to 9,600 ft.
Completion filings report 2 formation tops, including Spraberry, Dean.
Its lease has reported 8.97K barrels of oil and 22.9K mcf of gas since December 2005, with no volume in the three years through August 2026.
Operator of record
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,633
- 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 Nov 2008 |
| Latest permit | Pioneer Natural Res. USA, Inc.Apr 13, 2005 |
- 9,600
- total depth, ft
- 1
- permits on file
- Apr 13, 2005
- last permit issued
- Dec 14, 2005
- completed
- 8.97K
- cumulative oil, bbl
- 22.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · DEC 2005 THROUGH NOV 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 14, 2005
- Shut in
- —
- Plugged
- Mar 1, 2010
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Wells nearby
Every well with a location on file around this well, 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 AUG 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 |
|---|---|---|---|---|---|---|
| Willis "AA" O-10-37720 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 8.97K | 22.9K | Dec 2005 – Nov 2008 |
No volumes reported on these leases in the last three years.
Wells named Willis AA
Pioneer Natural Res. USA Inc.'s other wells filed under this lease name in Midland County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Pioneer Natural Res. USA, Inc. | Jan 9, 2006 | today |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Dec 2005 → Nov 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 560333-99 | Drill | Pioneer Natural Res. USA, Inc. | Apr 12, 2005 | Apr 13, 2005 | Oct 17, 2005 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 14, 2005 | Willis AA O-10-37720 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,705 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,539 | 7,773 | Perforated |
| 8,263 | 8,476 | Perforated |
| 8,924 | 9,213 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 300 | 11 | 200 S |
| 4.5 | 9,255 | 7.875 | 820 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 18, 2006 | Jan 19, 2006 | Yes |
| 00 | May 18, 2006 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 19, 2006. Cased hole, Gamma ray, Neutron.
Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.
| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Neutron PorosityGAMMA RAY CCL COMPENSATED NEUTRONSpans Spraberry, Dean | TIFF | 4,900 to 9,240 | Sep 19, 2006run Nov 16, 2005 | — |
"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.
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.
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 42-329-35276 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-35276 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/32935276, documented in the API reference.