WELL · 42-507-33572 · DISTRICT 1
Chittim Heirs #21H
Zavala County · Horizontal
Chittim Heirs #21H (API 42-507-33572) is a permitted horizontal well in Zavala County filed by Blackbrush O & G, LLC; no completion report is on file yet.
The RRC has issued one drilling permit, issued June 12, 2026, permitted to 5,500 ft.
Completion filings report 5 formation tops, including San Miguel, Anacacho, Austin Chalk, Eagle Ford.
Operator of record
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 339 permits on file · (210) 569-6756
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | none |
| Latest permit | Blackbrush O & G, LLCJun 12, 2026 |
- 5,500
- total depth, ft
- 1
- permits on file
- Jun 12, 2026
- last permit issued
- —
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 916173-99 | Drill | Blackbrush O & G, LLC | Jun 3, 2026 | Jun 12, 2026 | — | 5,500 |
Formation tops
As filed on W-2/G-1. Subsea from 634 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Miguel | 2,236 | -1,602 |
| Anacacho | 3,216 | -2,582 |
| Austin Chalk | 3,448 | -2,814 |
| Austin ChalkLOWER AUSTIN CHALK | 4,290 | -3,656 |
| Eagle FordEAGLEFORD | 4,632 | -3,998 |
| Eagle FordLOWER EAGLEFORD | 4,709 | -4,075 |
| EscondidoESCONDIDO - DISPOSAL | — | — |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,391 | 12.25 | 420 S |
| 5.5 | 13,479 | 8.75 | 2,580 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 | Oct 19, 2026 | Sep 29, 2026 | 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 42-507-33572 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-33572 → 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/50733572, documented in the API reference.