WELL · 42-329-41187 · DISTRICT 8
Cass A #20D
Midland County · Spraberry (Trend Area) field · Injection · Vertical
Cass A #20D (API 42-329-41187) is a well in Midland County operated by Pioneer Natural Res. USA Inc., completed February 9, 2023 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued September 15, 2016, permitted to 11,200 ft.
Completion filings report 14 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 82.8K barrels of oil and 149K mcf of gas since November 2007, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 2.47M barrels injected in the 12 months reported through January 2026.
Operator of record
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 Oct 2021 |
| Latest permit | Pioneer Natural Res. USA, Inc.Sep 15, 2016 |
- 11,200
- total depth, ft
- 1
- permits on file
- Sep 15, 2016
- last permit issued
- Feb 9, 2023
- completed
- 82.8K
- cumulative oil, bbl
- 149K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 9, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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.
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 |
|---|---|---|---|---|---|---|
| Cass "A" O-10-38554 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 3 | 82.8K | 149K | Nov 2007 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Nov 2007 → Oct 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 818211-99 | Drill | Pioneer Natural Res. USA, Inc. | Sep 1, 2016 | Sep 15, 2016 | Mar 15, 2017 | 11,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38554 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,819 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 957 | 1,862 |
| Yates | 2,760 | 59 |
| Seven Rivers | 3,067 | -248 |
| Queen | 3,821 | -1,002 |
| Grayburg | 4,364 | -1,545 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 6,082 | -3,263 |
| Atoka | — | — |
| Clear ForkCLEARFORK | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Glorieta | — | — |
| Mississippian | — | — |
| Spraberry | — | — |
| SpraberrySPRABERRY UPPER-DEAN | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,605 | 5,645 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,492 | 13.5 | 775 S |
| 7 | 5,870 | 9.875 | 610 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 | Jul 1, 2026 | May 12, 2026 | — |
| 00 | Jun 16, 2023 | Feb 22, 2023 | — |
| 00 | Aug 11, 2017 | Jul 25, 2017 | — |
| 00 | Aug 8, 2017 | May 25, 2017 | Yes |
| 00 | Jul 28, 2017 | — | — |
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 42-329-41187 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-41187 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 2.47M
- bbl, last 12 reported months
- 20.4M
- bbl, all reported
- Jan 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000114546 | W-14 Disposal | Active | 25,000 | 2,300 | 4,600–6,100 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 2,468,340 · prior 12 3,783,970(-35%)
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/32941187, documented in the API reference.