WELL · 42-371-39856 · DISTRICT 8
State-Hayter 35/42S #4HA
Pecos County · Hoefs T-K (Wolfcamp) field · NO Production · Horizontal
State-Hayter 35/42s #4HA (API 42-371-39856) is a horizontal well in Pecos County operated by Siltstone Resources OP II LLC, completed February 16, 2019 and listed as no production on the RRC schedule.
The RRC has issued one drilling permit, issued December 31, 2018, permitted to 10,000 ft.
Completion filings report 10 formation tops, including Glorieta, Grayburg, O'Brien, Queen.
Its lease has reported 59.1K barrels of oil and 105K mcf of gas since February 2019, last reporting in July 2026.
Operator of record
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 | Siltstone Resources OP II, LLCthrough Jun 2020 |
| Latest permit | Siltstone Resources OP II, LLCDec 31, 2018 |
- 10,000
- total depth, ft
- 1
- permits on file
- Dec 31, 2018
- last permit issued
- Feb 16, 2019
- completed
- 59.1K
- cumulative oil, bbl
- 105K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 16, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
Surface location
30.863807, -103.413941
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Pecos County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| State-Hayter 35/42S O-10-53916 | Hoefs T-K (Wolfcamp) | Siltstone Resources OP II, LLC | 1 | 59.1K | 105K | Feb 2019 – 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.
- 1Siltstone Resources OP II, LLCFeb 2019 → Jun 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 845352-99 | Drill | Siltstone Resources OP II, LLC | Oct 3, 2018 | Dec 31, 2018 | Oct 27, 2018 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-53916 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,323 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,867 | 16,987 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,511 | 17.5 | 1,845 S |
| 10.75 | 5,059 | 12.25 | 1,005 S |
| 7.625 | 9,629 | 9.875 | 740 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 | Jul 10, 2020 | Jan 17, 2020 | 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 42-371-39856 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-39856 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
State-Hayter Unit 33/44S42-371-39891
2.9 KM · Siltstone Resources OP II, LLC · Section with this well →
| Yates | — | |
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Tubb | — | |
| Rustler | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
AJ Krejci State 18442-371-38891
4.2 KM · Throne Delaware Resources, LLC · Section with this well →
| Bone Spring | 7,095 | -3,767 |
| Wolfcamp | 9,135 | -5,807 |
| Wolfcamp | 9,900 | -6,572 |
Sicem Bears State Unit42-371-39139
5.0 KM · Siltstone Resources OP II, LLC · Section with this well →
| Toborg | 100 | 3,135 |
| Yates | 700 | 2,535 |
| Soma | 700 | 2,535 |
| Queen | 1,100 | 2,135 |
| Rustler | 1,300 | 1,935 |
| Seven Rivers | 1,400 | 1,835 |
| Grayburg | 1,600 | 1,635 |
| O'Brien | 2,500 | 735 |
10 TOPS · FIRST 8
State-Hayter 3042-371-39813
5.7 KM · Siltstone Resources OP II, LLC · Section with this well →
| Seven Rivers | — | |
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
Slaughter State42-371-39684
6.7 KM · Throne Petroleum Resources LLC · Section with this well →
| Rustler | 1,383 | 2,091 |
| Tubb | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| Queen | — | |
| O'Brien | — | |
| Grayburg | — |
10 TOPS · FIRST 8
Grizzly42-389-37461
9.3 KM · Pcore Exploration & Prod II LLC · Section with this well →
| Bone Spring | 9,089 | |
| Dean | 9,584 | |
| Wolfcamp | 9,671 | |
| Delaware | — | |
| Bell Canyon | — | |
| Castile | — | |
| Cherry Canyon | — | |
| Delaware | — |
11 TOPS · FIRST 8
Orca North42-389-36903
9.4 KM · Pcore Exploration & Prod II LLC · Section with this well →
| Delaware | 2,500 | 632 |
| Castile | 3,963 | -831 |
| Bell Canyon | 5,255 | -2,123 |
| Delaware | 5,700 | -2,568 |
| Cherry Canyon | 5,945 | -2,813 |
| Delaware | 6,500 | -3,368 |
| Bone Spring | 7,708 | -4,576 |
| Permian (undifferentiated) | 9,520 | -6,388 |
10 TOPS · FIRST 8
Graef 1-1242-389-36124
9.5 KM · Pcore Exploration & Prod II LLC · Section with this well →
| Delaware | 2,500 | 628 |
| Cherry Canyon | 6,000 | -2,872 |
| Delaware | 6,500 | -3,372 |
| Bone Spring | 8,588 | -5,460 |
| Permian (undifferentiated) | 9,594 | -6,466 |
| Wolfcamp | 9,957 | -6,829 |
| Fusselman | — | |
| Mississippian | — |
11 TOPS · FIRST 8
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/37139856, documented in the API reference.