TEXAS · WELLS · TYLER COUNTY · STERLING-BLACK STONE A-5 LEASE · API 42-457-30621 · DISTRICT 06
Sterling-Black Stone A-5 #1
Tyler County · Brookeland (Austin Chalk 8800) field · Producing · Horizontal
Sterling-Black Stone A-5 #1 (API 42-457-30621) is a horizontal well in Tyler County operated by Zarvona Energy LLC, completed June 23, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 21, 2006, permitted to 13,790 ft.
It was permitted by Anadarko E&P Company LP and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Wilcox, Midway, Navarro, Pecan Gap.
Its lease has reported 752K barrels of oil and 4M mcf of gas since June 2006, last reporting volume in April 2026.
Operator of record
Permitted by Anadarko E&P Company LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 98
- Phone
- (713) 600-0600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Zarvona Energy LLC |
| Production reports | Zarvona Energy LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Company LPFeb 21, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,790
- total depth, ft
- 1
- permits on file
- Feb 21, 2006
- last permit issued
- Jun 23, 2006
- completed
- 752K
- cumulative oil, bbl
- 4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2006 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 23, 2006
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sterling-Black Stone A-5 G-6-222188 | Brookeland (Austin Chalk, 8800) | Zarvona Energy LLC | 1 | 752K | 4M | Jun 2006 – Apr 2026 |
Gas, mcf lease total
Last 12 months 28,767 · prior 12 19,709(+46%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Company LPJun 2006 → Dec 2012
- 2Anadarko E&P Onshore LLCJan 2013 → Mar 2016
- 3Zarvona Energy LLCApr 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 614551-99 | Drill | Anadarko E&P Company LP | Feb 21, 2006 | Feb 21, 2006 | Mar 9, 2006 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 23, 2006 | Sterling-Black Stone A-5 G-6-222188 | Brookeland (Austin Chalk 8800) | Zarvona Energy LLC | Producing | 13,790 |
Formation tops
As filed on W-2/G-1. Subsea from 339 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,272 | 19,456 | Perforated |
| 13,286 | 19,447 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,105 | 14.75 | 1,355 S |
| 7.625 | 13,298 | 9.875 | 465 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 | Mar 20, 2007 | Aug 31, 2006 | Yes |
| 00 | Nov 28, 2006 | — | — |
Well logs
4 logs loaded from the RRC's log index, the latest received Jul 13, 2009. Cased hole. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| SURVEYS CASED HOLESpans Austin Chalk | TIFF | 13,255 to 19,447 | Jul 13, 2009run May 15, 2006 | 1.17 |
| SURVEYS CASED HOLESpans Ozan, Austin Chalk | TIFF | 13,236 to 19,400 | Jul 13, 2009run May 6, 2006 | 1.19 |
| SURVEYS CASED HOLESpans Ozan, Austin Chalk | TIFF | 12,787 to 15,685 | Jul 13, 2009run Apr 25, 2006 | 0.86 |
| SURVEYS CASED HOLESpans Ozan, Austin Chalk | TIFF | 12,795 to 13,266 | Jul 13, 2009run Mar 26, 2006 | 0.63 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-457-30621 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-457-30621 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/45730621, documented in the API reference.