WELL · 42-173-33746 · DISTRICT 8
Hillger Bertha A #1
Glasscock County · Cobra (Wolfcamp) field · Directional
Hillger Bertha A #1 (API 42-173-33746) is a well in Glasscock County operated by Fed Operating LLC, completed May 20, 2011.
The RRC has issued one drilling permit (amended once), issued August 2, 2010, permitted to 8,500 ft.
It was permitted by Dyad Petroleum Company and has since transferred to Fed Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.
Its 2 leases have reported 286K barrels of oil and 224K mcf of gas since September 2010, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Dyad Petroleum Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 6 permits on file · (432) 661-7477
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Fed Operating LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Dyad Petroleum CompanyAug 2, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 2
- permits on file
- Aug 2, 2010
- last permit issued
- May 20, 2011
- completed
- 286K
- cumulative oil, bbl
- 224K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 20, 2011
- Shut in
- —
- Plugged
- —
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 2 leases 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 |
|---|---|---|---|---|---|---|
| Hillger, Bertha "A" O-10-52916 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 34.4K | 119K | Sep 2019 – Jul 2026 |
| Hillger, Bertha "A" O-10-40393 | Cobra (Wolfcamp) | Fed Operating LLC | 1 | 252K | 106K | Sep 2010 – May 2020 |
Gas, mcf lease total
Last 12 months 22,993 · prior 12 21,808(+5%)
Oil, barrels lease total
Last 12 months 218 · prior 12 1,688(-87%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dyad Petroleum CompanyJun 2011 → Feb 2017
- 2Rio Oil and Gas (Permian) Ii,llcMar 2017 → Jun 2019
- 3Fed Operating LLCJul 2019 → Oct 2022
- 4DE IV Operating, LLCNov 2022 → Apr 2025
- 5Diamondback E&P LLCMay 2025 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 699501-98 | Drill | Dyad Petroleum Company | Dec 30, 2010 | Aug 2, 2010 | Aug 6, 2010 | 8,500 |
| 699501-99 | Drill | Dyad Petroleum Company | Jul 22, 2010 | Aug 2, 2010 | Aug 6, 2010 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-40393 | — | — | — | — |
| — | — O-10-52916 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,590 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,107 | 8,109 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 401 | 17.5 | 400 S |
| 8.625 | 2,996 | 11 | 725 S |
| 5.5 | 8,181 | 7.875 | 800 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 | Feb 14, 2020 | Feb 5, 2020 | — |
| 00 | Feb 13, 2020 | Feb 5, 2020 | — |
| 00 | Sep 27, 2012 | May 31, 2011 | Yes |
| 00 | Jan 31, 2011 | Sep 24, 2010 | Yes |
| 00 | Jan 21, 2011 | — | — |
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 42-173-33746 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-33746 → 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/17333746, documented in the API reference.