TEXAS · WELLS · ANDREWS COUNTY · SHAFTER LAKE /SAN ANDRES/ UNIT LEASE · API 42-003-36764 · DISTRICT 7B
Shafter Lake /San Andres/ Unit #341
Andrews County · Shafter Lake (San Andres) field · Shut In · Vertical
Shafter Lake /San Andres/ Unit #341 (API 42-003-36764) is a well in Andrews County operated by Hilcorp Energy Company, completed August 13, 1990 and listed as shut in on the RRC schedule, shut in January 1, 1998.
The RRC has issued one drilling permit, issued June 8, 1990, permitted to 4,700 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 5 formation tops, including Rustler, Yates, Queen, Grayburg.
Its lease has reported 6.72M barrels of oil and 2.32M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 410 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
Operator of record
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,460
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Aug 2026 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Jun 8, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,700
- total depth, ft
- 1
- permits on file
- Jun 8, 1990
- last permit issued
- Aug 13, 1990
- completed
- 6.72M
- cumulative oil, bbl
- 2.32M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 13, 1990
- Shut in
- Jan 1, 1998
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; they carry 410 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shafter Lake /San Andres/ Unit O-10-20587 | Shafter Lake (San Andres) | Hilcorp Energy Company | 410 | 6.72M | 2.32M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 55,214 · prior 12 63,047(-12%)
Gas, mcf lease total
Last 12 months 15,272 · prior 12 3,490(+338%)
Wells named Shafter Lake /San Andres/ Unit
Hilcorp Energy Company's other wells filed under this lease name in Andrews 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 |
|---|---|---|
| Hilcorp Energy Company | Dec 31, 2024 | today |
| Apache Corporation | Apr 1, 2007 | Dec 31, 2024 |
| Kerr-McGee Oil & Gas Onshore LP | Dec 1, 2006 | Apr 1, 2007 |
| Westport Oil and Gas Company, LP | Mar 1, 2002 | Dec 1, 2006 |
| Belco Energy Corp. | Sep 1, 1998 | Mar 1, 2002 |
| Coda Energy, Inc. | Jan 1, 1993 | Sep 1, 1998 |
| Mobil Producing TX. & N.M. Inc. | Jan 1, 1980 | Jan 1, 1993 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Coda Energy, Inc.Jan 1993 → Aug 1998
- 2Belco Energy Corp.Sep 1998 → Feb 2002
- 3Westport Oil and Gas Company, LPMar 2002 → Feb 2006
- 4Kerr-McGee Oil & Gas Onshore LPMar 2006 → Mar 2007
- 5Apache CorporationApr 2007 → Nov 2024
- 6Hilcorp Energy CompanyDec 2024 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 374283-99 | Drill | Mobil Producing TX. & N.M. Inc. | Jun 8, 1990 | Jun 8, 1990 | Jun 10, 1990 | 4,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 13, 1990 | Shafter Lake /San Andres/ Unit O-10-20587 | Shafter Lake (San Andres) | Hilcorp Energy Company | Shut In · shut in Jan 1, 1998 | 4,700 |
Formation tops
As filed on W-2/G-1. Subsea from 3,187 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,730 | 1,457 |
| Yates | 2,776 | 411 |
| Queen | 3,965 | -778 |
| Grayburg | 4,113 | -926 |
| San Andres | 4,262 | -1,075 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,334 | 4,672 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,650 | 12.25 | 800 S |
| 5.5 | 4,700 | 7.875 | 700 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 | Oct 17, 1991 | Jul 31, 1991 | — |
| 00 | Feb 22, 1991 | Dec 7, 1990 | Yes |
| 00 | Feb 15, 1991 | — | — |
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 42-003-36764 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-36764 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 6.41K
- bbl, all reported
- Mar 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000074117 | H-1 Injection | Active | 1,000 | 2,000 | 4,334–4,672 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/00336764, documented in the API reference.