TEXAS · WELLS · GRIMES COUNTY · SPRING BRANCH LEASE · API 42-185-30596 · DISTRICT 03
Spring Branch #1H
Grimes County · Giddings (Austin Chalk Gas) field · Horizontal
Spring Branch #1H (API 42-185-30596) is a plugged horizontal well in Grimes County, plugged February 25, 2026, last operated by Magnolia Oil & Gas Operating LLC.
The RRC has issued one drilling permit, issued November 20, 1996, permitted to 15,000 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 28.4K barrels of oil and 777K mcf of gas since February 1997, last reporting volume in September 2023.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 6, 2026
- Permits on file
- 617
- Phone
- (713) 842-9050
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Magnolia Oil & Gas Operating LLC |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Oct 2023 |
| Latest permit | Chesapeake Operating, Inc.Nov 20, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,000
- total depth, ft
- 1
- permits on file
- Nov 20, 1996
- last permit issued
- Feb 17, 1997
- completed
- 28.4K
- cumulative oil, bbl
- 777K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 1997 THROUGH Oct 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 17, 1997
- Shut in
- —
- Plugged
- Feb 25, 2026
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 |
|---|---|---|---|---|---|---|
| Spring Branch G-3-164158 | Giddings (Austin Chalk, Gas) | Magnolia Oil & Gas Operating LLC | 1 | 28.4K | 777K | Feb 1997 – Oct 2023 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Feb 1997 → Jun 2009
- 2Enervest Operating, L.L.C.Jul 2009 → Jul 2018
- 3Magnolia Oil & Gas Operating LLCSep 2018 → Sep 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 455388-99 | Drill | Chesapeake Operating, Inc. | Nov 20, 1996 | Nov 20, 1996 | Dec 13, 1996 | 15,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 17, 1997 | Spring Branch G-3-164158 | Giddings (Austin Chalk Gas) | Magnolia Oil & Gas Operating LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 258 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 11,881 | -11,623 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,945 | 14,774 | Perforated |
| 11,945 | 16,430 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,517 | 14.75 | 1,150 S |
| 7.625 | 11,945 | 9.875 | 1,140 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 | Oct 7, 1997 | Apr 28, 1997 | Yes |
| 00 | Sep 9, 1997 | — | — |
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 42-185-30596 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-185-30596 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/18530596, documented in the API reference.