TEXAS · WELLS · REAGAN COUNTY · BIG LAKE (SPRABERRY) UNIT LEASE · API 42-383-31159 · DISTRICT 6E
Big Lake (Spraberry) Unit #1
Reagan County · Spraberry (Trend Area) field · Vertical
Big Lake (Spraberry) Unit #1 (API 42-383-31159) is a plugged well in Reagan County, plugged August 18, 1998, last operated by Chevron Midcontinent L.P..
The RRC has issued one drilling permit, issued June 20, 1977, permitted to 7,700 ft.
It was permitted by Saxon Oil Company and has since transferred to Chevron Midcontinent L.P. on the wellbore schedule.
Its lease has reported 56.4K barrels of oil and 142K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 15 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Saxon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 26, 2026
- Permits on file
- 173
- Phone
- (866) 212-1212
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chevron Midcontinent L.P. |
| Production reports | Chevron Midcontinent, L.P.through Mar 2006 |
| Latest permit | Saxon Oil CompanyJun 20, 1977 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,700
- total depth, ft
- 1
- permits on file
- Jun 20, 1977
- last permit issued
- Aug 19, 1977
- completed
- 56.4K
- cumulative oil, bbl
- 142K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2006
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 19, 1977
- Shut in
- —
- Plugged
- Aug 18, 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 lease this well is completed on; they carry 15 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Big Lake (Spraberry) Unit O-9-12675 | Spraberry (Trend Area) | Chevron Midcontinent, L.P. | 15 | 56.4K | 142K | Jan 1993 – Mar 2006 |
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.
- 1Hallwood Energy CorporationJan 1993 → Nov 1994
- 2Hallwood Petroleum, Inc.Dec 1994 → Dec 2001
- 3Hec Petroleum, Inc.Jan 2002 → Mar 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 1151-99 | Drill | Saxon Oil Company | Jun 20, 1977 | Jun 20, 1977 | Jun 22, 1977 | 7,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 19, 1977 | Big Lake (Spraberry) Unit O-9-12675 | Spraberry (Trend Area) | Chevron Midcontinent L.P. | Plugged | — |
| Aug 19, 1977 | University 13 O-9-7263 | Spraberry (Trend Area) | Chevron Midcontinent L.P. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,971 | 7,501 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 461 | 17.5 | 550 S |
| 4.5 | 7,575 | 7.875 | 600 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 | Jul 10, 1989 | Aug 26, 1977 | — |
| 00 | Jul 6, 1989 | — | — |
| 00 | Jan 12, 1984 | Aug 26, 1977 | — |
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 42-383-31159 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-31159 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/38331159, documented in the API reference.