WELL · 42-187-33540 · DISTRICT 1
Hammerhead #1B
Guadalupe County · Dunlap field · Producing · Vertical
Hammerhead #1B (API 42-187-33540) is a well in Guadalupe County operated by Petroleum Recovery Systems L.C., completed February 20, 2009 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 11, 2008, permitted to 2,300 ft.
It was permitted by Reliance Oil And Gas, Inc. and has since transferred to Petroleum Recovery Systems L.C. on the wellbore schedule.
Completion filings report 2 formation tops, including Pecan Gap, Austin Chalk.
Its lease has reported 3.36K barrels of oil since February 2009, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Petroleum Recovery Systems L.C.
Permitted by Reliance Oil and Gas, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Apr 4, 2026 · 2 permits on file · (512) 423-0818
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Petroleum Recovery Systems L.C. |
| Production reports | Bair's Lease Service, Inc.through Mar 2026 |
| Latest permit | Reliance Oil and Gas, Inc.Aug 11, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,300
- total depth, ft
- 1
- permits on file
- Aug 11, 2008
- last permit issued
- Feb 20, 2009
- completed
- 3.36K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 20, 2009
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hammerhead O-1-15052 | Dunlap | Petroleum Recovery Systems, L.C. | 2 | 3.36K | 0 | Feb 2009 – Jul 2026 |
Oil, barrels lease total
Last 12 months 51 · prior 12 29(+76%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Reliance Oil and Gas, Inc.Feb 2009 → Jun 2012
- 2Patel Oil Group LLCJul 2012 → May 2014
- 3Bair's Lease Service, Inc.Jun 2014 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 667528-99 | Drill | Reliance Oil and Gas, Inc. | Jul 24, 2008 | Aug 11, 2008 | Oct 28, 2008 | 2,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-15052 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,114 | 2,264 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 5.5 | 2,114 | 7.875 | 261 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 | Aug 12, 2009 | Apr 2, 2009 | Yes |
| 00 | Jul 9, 2009 | — | — |
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 42-187-33540 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-187-33540 → 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.
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/18733540, documented in the API reference.