TEXAS · WELLS · ZAPATA COUNTY · SINGER-ANDERS LEASE · API 42-505-34982 · DISTRICT 04
Singer-Anders #1
Zapata County · Exsun (Lobo Cons.) field · Producing · Directional
- Fields on the latest permit · any of 4
- Exsun (Lobo) · Zapata (Queen City) · Zapata (Reklaw 4300) · Zapata, SE. (Wilcox)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Singer-Anders #1 (API 42-505-34982) is a well in Zapata County operated by Hilcorp Energy Company, completed December 1, 2007 and listed as producing on the RRC schedule, shut in March 1, 2013.
The RRC has issued one drilling permit, issued April 15, 2004, permitted to 11,440 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Queen City, Wilcox, Cretaceous.
Its lease has reported 185 barrels of oil and 775K mcf of gas since June 2004, last reporting volume in February 2025.
Operator of record
Permitted by Chesapeake Operating, 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 Feb 2025 |
| Latest permit | Chesapeake Operating, Inc.Apr 15, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,440
- total depth, ft
- 1
- permits on file
- Apr 15, 2004
- last permit issued
- Dec 1, 2007
- completed
- 185
- cumulative oil, bbl
- 775K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUN 2004 THROUGH FEB 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 1, 2007
- Shut in
- Mar 1, 2013
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Singer-Anders G-4-203527 | Exsun (Lobo Cons.) | Hilcorp Energy Company | 1 | 185 | 775K | Jun 2004 – Feb 2025 |
Gas, mcf lease total
Last 12 months 0 · prior 12 99(-100%)
Wells named Singer-Anders
Hilcorp Energy Company's other wells filed under this lease name in Zapata 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 | Sep 1, 2014 | today |
| Chesapeake Operating, Inc. | Jun 11, 2004 | Sep 1, 2014 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Jun 2004 → Feb 2013
- 2Hilcorp Energy CompanyMar 2015 → Feb 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 544479-99 | Drill | Chesapeake Operating, Inc. | Apr 15, 2004 | Apr 15, 2004 | Apr 23, 2004 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 1, 2007 | Singer-Anders G-4-203527 | Exsun (Lobo Cons.) | Hilcorp Energy Company | Producing · shut in Mar 1, 2013 | 11,440 |
Formation tops
As filed on W-2/G-1. Subsea from 353 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 2,235 | -1,882 |
| Wilcox | 4,344 | -3,991 |
| Cretaceous | 11,030 | -10,677 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,788 | 10,240 | Perforated |
| 8,788 | 10,241 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 759 | 12.25 | 320 S |
| 7 | 6,651 | 8.75 | 505 S |
| 4.5 | 11,440 | 6.25 | 400 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 16, 2008 | Jun 27, 2008 | — |
| 00 | May 20, 2008 | Feb 28, 2008 | — |
| 00 | Nov 15, 2004 | Jul 15, 2004 | Yes |
| 00 | Sep 30, 2004 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-505-34982 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-34982 → 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/50534982, documented in the API reference.