WELL · 42-227-39145 · DISTRICT 8
Zilbert 6-43 Unit #1WA
Howard County · Spraberry (Trend Area) field · Shut IN · Horizontal
Zilbert 6-43 Unit #1WA (API 42-227-39145) is a horizontal well in Howard County operated by Highpeak Energy Holdings LLC, completed September 30, 2017 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 13, 2017, permitted to 8,900 ft.
It was permitted by Hannathon Petroleum, LLC and has since transferred to Highpeak Energy Holdings LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Glorieta, San Andres.
Its lease has reported 139K barrels of oil and 84.5K mcf of gas since September 2017, last reporting in July 2026.
Operator of record
Permitted by Hannathon Petroleum, LLC; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Sep 4, 2025 · 896 permits on file · (432) 894-2640
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Highpeak Energy Holdings LLC |
| Production reports | Highpeak Energy Holdings, LLCthrough Jun 2023 |
| Latest permit | Hannathon Petroleum, LLCJun 13, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,900
- total depth, ft
- 2
- permits on file
- Jun 13, 2017
- last permit issued
- Sep 30, 2017
- completed
- 139K
- cumulative oil, bbl
- 84.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2017 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 30, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.256777, -101.375677
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Howard 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 |
|---|---|---|---|---|---|---|
| Zilbert 6-43 Unit O-10-50316 | Spraberry (Trend Area) | Highpeak Energy Holdings, LLC | 1 | 139K | 84.5K | Sep 2017 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hannathon Petroleum, LLCOct 2017 → Mar 2021
- 2Highpeak Energy Holdings, LLCJun 2023 → Jun 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 826945-98 | Drill | Hannathon Petroleum, LLC | Dec 20, 2017 | Jun 13, 2017 | Jul 13, 2017 | 8,900 |
| 826945-99 | Drill | Hannathon Petroleum, LLC | May 18, 2017 | Jun 13, 2017 | Jul 13, 2017 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-50316 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,425 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,485 | 940 |
| Seven Rivers | 2,070 | 355 |
| Glorieta | 2,410 | 15 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 2,500 | -75 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 3,000 | -575 |
| Spraberry | 4,640 | -2,215 |
| Leonard | 6,440 | -4,015 |
| Wolfcamp | 6,570 | -4,145 |
| Coleman Junction | — | — |
| Dean | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,268 | 14,963 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 292 | 17.5 | 270 S |
| 9.625 | 5,360 | 12.25 | 865 S |
| 5.5 | 15,028 | 8.5 | 2,779 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 | Sep 4, 2018 | Jun 21, 2018 | 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 42-227-39145 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-39145 → 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.
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.
Furrh 542-227-40209
1.0 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,415 | 980 |
| Seven Rivers | 1,938 | 457 |
| Glorieta | 2,299 | 96 |
| San Andres | 2,560 | -165 |
| Clear Fork | 3,160 | -765 |
| Spraberry | 4,607 | -2,212 |
| Leonard | 6,324 | -3,929 |
| Dean | 6,484 | -4,089 |
10 TOPS · FIRST 8
Furrh 542-227-40208
1.0 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,415 | 980 |
| Seven Rivers | 1,938 | 457 |
| Glorieta | 2,267 | 128 |
| San Andres | 2,560 | -165 |
| Clear Fork | 3,203 | -808 |
| Spraberry | 4,608 | -2,213 |
| Leonard | 6,290 | -3,895 |
| Dean | 6,470 | -4,075 |
10 TOPS · FIRST 8
Higgins 142-227-39194
1.2 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,500 | 884 |
| Seven Rivers | 1,760 | 624 |
| Glorieta | 1,980 | 404 |
| San Andres | 2,470 | -86 |
| Clear Fork | 2,810 | -426 |
| Spraberry | 5,910 | -3,526 |
| Leonard | 6,450 | -4,066 |
| Dean | 6,600 | -4,216 |
10 TOPS · FIRST 8
Bond 842-227-39651
1.6 KM · Haimo Oil & Gas LLC · Section with this well →
| Yates | 1,240 | 1,144 |
| Seven Rivers | 1,600 | 784 |
| Glorieta | 2,040 | 344 |
| San Andres | 3,200 | -816 |
| Clear Fork | 3,900 | -1,516 |
| Spraberry | 4,700 | -2,316 |
| Dean | 6,360 | -3,976 |
| Wolfcamp | 6,460 | -4,076 |
10 TOPS · FIRST 8
Robinson 1242-227-39294
2.3 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,470 | 945 |
| Seven Rivers | 1,750 | 665 |
| Glorieta | 2,000 | 415 |
| San Andres | 2,680 | -265 |
| Clear Fork | 2,880 | -465 |
| Spraberry | 5,360 | -2,945 |
| Leonard | 6,360 | -3,945 |
| Dean | 6,440 | -4,025 |
10 TOPS · FIRST 8
Lucky42-227-39927
3.0 KM · SM Energy Company · Section with this well →
| Yates | 1,440 | 954 |
| Seven Rivers | 1,545 | 849 |
| San Andres | 3,156 | -762 |
| Glorieta | 3,691 | -1,297 |
| Clear Fork | 4,192 | -1,798 |
| Spraberry | 5,386 | -2,992 |
| Leonard | 6,288 | -3,894 |
| Dean | 6,635 | -4,241 |
10 TOPS · FIRST 8
Flanagan 1342-227-39200
3.0 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,560 | 860 |
| Seven Rivers | 1,970 | 450 |
| Glorieta | 2,110 | 310 |
| San Andres | 2,590 | -170 |
| Clear Fork | 2,910 | -490 |
| Spraberry | 5,600 | -3,180 |
| Leonard | 6,400 | -3,980 |
| Dean | 6,520 | -4,100 |
10 TOPS · FIRST 8
Modern Flanagan 13-24 Unit42-227-39374
3.2 KM · Hannathon Petroleum, LLC · Section with this well →
| Yates | 1,570 | 915 |
| Seven Rivers | 1,845 | 640 |
| Glorieta | 2,019 | 466 |
| San Andres | 2,609 | -124 |
| Clear Fork | 2,839 | -354 |
| Spraberry | 5,228 | -2,743 |
| Wolfcamp | — | |
| Coleman Junction | — |
10 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/22739145, documented in the API reference.