WELL · 42-371-38948 · DISTRICT 8
Boldest Hayter State #3503
Pecos County · Hoefs T-K (Wolfcamp) field · Shut IN · Vertical
Boldest Hayter State #3503 (API 42-371-38948) is a well in Pecos County operated by Siltstone Resources OP II LLC, completed August 23, 2013 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued June 22, 2012, permitted to 11,750 ft.
It was permitted by Cog Operating LLC and has since transferred to Siltstone Resources OP II LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Delaware, Bone Spring, Wolfcmap.
Its lease has reported 10.4K barrels of oil and 17.7K mcf of gas since March 2013, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by COG Operating LLC; the EWA schedule now lists a different operator.
Wilmington, DE · P-5 Y, filed Apr 4, 2026 · 16 permits on file · (832) 589-6808
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Siltstone Resources OP II LLC |
| Production reports | COG Operating LLCthrough Sep 2014 |
| Latest permit | COG Operating LLCJun 22, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,750
- total depth, ft
- 1
- permits on file
- Jun 22, 2012
- last permit issued
- Aug 23, 2013
- completed
- 10.4K
- cumulative oil, bbl
- 17.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 23, 2013
- 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 |
|---|---|---|---|---|---|---|
| Boldest Hayter State O-10-44095 | Hoefs T-K (Wolfcamp) | Siltstone Resources OP II, LLC | 2 | 10.4K | 17.7K | Mar 2013 – Jul 2026 |
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.
- 1COG Operating LLCMar 2013 → Jun 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 742843-99 | Drill | COG Operating LLC | Jun 14, 2012 | Jun 22, 2012 | Jul 13, 2012 | 11,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-44095 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,377 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 5,125 | -1,748 |
| Bone Spring | 7,425 | -4,048 |
| Wolfcmap | 9,350 | -5,973 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,259 | 9,837 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,555 | 17.5 | 1,625 S |
| 9.625 | 5,058 | 12.25 | 1,350 S |
| 7 | 11,479 | 8.75 | 920 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 | May 28, 2015 | Feb 5, 2015 | Yes |
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 42-371-38948 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-38948 → 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/37138948, documented in the API reference.