TEXAS · WELLS · IRION COUNTY · ROCK HOLLOW LEASE · API 42-235-35765 · DISTRICT 6E
Rock Hollow #1877SH
Irion County · Spraberry (Trend Area) field · Producing · Horizontal
Rock Hollow #1877SH (API 42-235-35765) is a horizontal well in Irion County operated by Discovery Natural Resources LLC, completed December 19, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 28, 2014, permitted to 6,883 ft.
It was permitted by Fiml Natural Resources, LLC and has since transferred to Discovery Natural Resources LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Grayburg, San Andres, Clear Fork, Spraberry.
Its lease has reported 3.04M barrels of oil and 35.2M mcf of gas since September 2011, last reporting volume in April 2026. The lease carries 60 wells, so these are lease totals, not this well alone.
Operator of record
Discovery Natural Resources LLC
Permitted by Fiml Natural Resources, LLC; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active (A)
- P-5 last filed
- Jan 12, 2026
- Permits on file
- 452
- Phone
- (303) 893-5073
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Discovery Natural Resources LLC |
| Production reports | Discovery Natural Resources LLCthrough Apr 2026 |
| Latest permit | Fiml Natural Resources, LLCApr 28, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,883
- total depth, ft
- 1
- permits on file
- Apr 28, 2014
- last permit issued
- Dec 19, 2014
- completed
- 3.04M
- cumulative oil, bbl
- 35.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 19, 2014
- Shut in
- —
- 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.
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 60 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Rock Hollow O-9-17647 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 60 | 3.04M | 35.2M | Sep 2011 – Apr 2026 |
Gas, mcf lease total
Last 12 months 2,840,796 · prior 12 2,948,244(-4%)
Oil, barrels lease total
Last 12 months 89,194 · prior 12 121,605(-27%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fiml Natural Resources, LLCSep 2011 → Aug 2014
- 2Discovery Natural Resources LLCSep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 782299-99 | Drill | Fiml Natural Resources, LLC | Mar 17, 2014 | Apr 28, 2014 | Jun 30, 2014 | 7,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 19, 2014 | Rock Hollow O-9-17647 | Spraberry (Trend Area) | Discovery Natural Resources LLC | Producing | 6,883 |
Formation tops
As filed on W-2/G-1. Subsea from 2,565 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 1,682 | 883 |
| San Andres | 2,012 | 553 |
| Clear ForkCLEARFORK | 2,860 | -295 |
| Spraberry | 5,010 | -2,445 |
| Wolfcamp | 6,504 | -3,939 |
| Canyon | — | — |
| Fusselman | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,790 | 15,432 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 840 | 17.5 | 830 S |
| 9.625 | 6,190 | 12.25 | 2,535 S |
| 5.5 | 15,474 | 8.75 | 1,720 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 | Feb 26, 2015 | Jan 2, 2015 | — |
| 00 | Dec 19, 2014 | Nov 14, 2014 | 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 42-235-35765 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-235-35765 → 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.
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/23535765, documented in the API reference.