TEXAS · WELLS · UPTON COUNTY · API 42-461-02246 · DISTRICT 6E
Smalling 20 #1
Upton County · Spraberry (Trend Area CL. Fk.) field · Vertical
Smalling 20 #1 (API 42-461-02246) is a plugged well in Upton County, plugged May 12, 1998, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued November 25, 1997, permitted to 7,145 ft.
Completion filings report 3 formation tops, including San Andres, Clear Fork, Spraberry.
Its 2 leases have reported 12.9M barrels of oil and 32.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 381 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.Nov 25, 1997 |
- 7,145
- total depth, ft
- 1
- permits on file
- Nov 25, 1997
- last permit issued
- Feb 3, 1998
- completed
- 12.9M
- cumulative oil, bbl
- 32.5M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 3, 1998
- Shut in
- —
- Plugged
- May 12, 1998
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 2 leases this well is completed on; they carry 381 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| North Pembrook Spraberry Unit O-9-3913 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 380 | 12.9M | 32.5M | Jan 1993 – Jul 2026 |
| Smalling "20" O-9-14740 | Spraberry (Trend Area CL. Fk.) | Pioneer Natural Res. USA, Inc. | 1 | 0 | 0 | Mar 1998 – May 1998 |
Oil, barrels lease total
Last 12 months 251,657 · prior 12 308,433(-18%)
Gas, mcf lease total
Last 12 months 906,929 · prior 12 1,000,274(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 470563-99 | Recompletion | Pioneer Natural Res. USA, Inc. | Nov 25, 1997 | Nov 25, 1997 | Jan 5, 1998 | 7,145 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 3, 1998 | Smalling 20 O-9-14740 | Spraberry (Trend Area CL. Fk.) | Pioneer Natural Res. USA Inc. | Plugged | — |
| — | North Pembrook Spraberry Unit O-9-3913 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,719 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San AndresTOP SAN ANDRES | 4,050 | -1,331 |
| Clear ForkTOP CLEARFORK | 6,170 | -3,451 |
| SpraberryTOP SPRABERRY | 7,057 | -4,338 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,545 | 6,548 | Perforated |
| 6,586 | 6,590 | Perforated |
| 6,618 | 6,627 | Perforated |
| 6,684 | 6,700 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 346 | 14.75 | 300 S |
| 7 | 6,966 | 8.75 | 175 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 | Apr 8, 1998 | Mar 18, 1998 | Yes |
| 00 | Mar 31, 1998 | — | — |
| 00 | Jan 12, 1984 | — | — |
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 42-461-02246 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-02246 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
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/46102246, documented in the API reference.