WELL · 42-185-30520 · DISTRICT 3
Sontag #1H
Grimes County · Giddings (Austin Chalk Gas) field · Horizontal · Sidetrack
Sontag #1H (API 42-185-30520) is a plugged horizontal well in Grimes County, plugged November 19, 2019, last operated by Chesapeake Operating Inc..
The RRC has issued 2 drilling permits (amended once) between 1995 and 1996, permitted to 16,500 ft.
It was permitted by Snyder Oil Corporation and has since transferred to Chesapeake Operating Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including Pecan Gap, Austin Chalk.
Its 2 leases have reported 5.06K barrels of oil and 334K mcf of gas since August 1995, last reporting in July 2020. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Snyder Oil Corporation; the EWA schedule now lists a different operator.
Oklahoma City, OK · P-5 Y, filed Jul 4, 2026 · 13,061 permits on file · (405) 935-7500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chesapeake Operating Inc. |
| Production reports | Enervest Operating, L.L.C.through Apr 2016 |
| Latest permit | Snyder Oil CorporationFeb 13, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 16,500
- total depth, ft
- 3
- permits on file
- Feb 13, 1996
- last permit issued
- Apr 13, 1996
- completed
- 5.06K
- cumulative oil, bbl
- 334K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1995 THROUGH Jul 2020
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 13, 1996
- Shut in
- —
- Plugged
- Nov 19, 2019
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 |
|---|---|---|---|---|---|---|
| Sontag Unit O-3-24375 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 5.06K | 40.4K | Jun 2003 – Jul 2020 |
| Sontag G-3-159011 | Giddings (Austin Chalk, Gas) | Chesapeake Operating, Inc. | 1 | 0 | 294K | Aug 1995 – May 2011 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Snyder Oil CorporationAug 1995 → Oct 1996
- 2Chesapeake Operating, Inc.Nov 1996 → Jun 2009
- 3Enervest Operating, L.L.C.Jul 2009 → Mar 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 444692-99 | Recompletion · sidetrack | Snyder Oil Corporation | Feb 12, 1996 | Feb 13, 1996 | Mar 21, 1996 | 16,500 |
| 436045-98 | Drill | Snyder Oil Corporation | Jun 14, 1995 | May 19, 1995 | Jun 22, 1995 | 16,500 |
| 436045-99 | Drill | Snyder Oil Corporation | May 19, 1995 | May 19, 1995 | — | 16,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-159011 | — | — | — | — |
| — | — O-3-24375 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 377 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 10,946 | -10,569 |
| Austin Chalk | 11,522 | -11,145 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,670 | 16,005 | Perforated |
| 11,670 | 16,872 | Perforated |
| 11,875 | 16,803 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,508 | 14.75 | 592 S |
| 10.75 | 2,508 | 12.25 | 1,670 S |
| 7.625 | 11,640 | 8.75 | 450 S |
| 7.625 | 11,640 | 9.875 | 450 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 | Dec 15, 2003 | Jul 16, 2003 | — |
| 00 | Dec 3, 2003 | — | — |
| 00 | Aug 15, 1996 | Jun 17, 1996 | Yes |
| 00 | Aug 14, 1996 | Oct 12, 1995 | — |
| 00 | Jul 29, 1996 | — | — |
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 42-185-30520 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-185-30520 → 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/18530520, documented in the API reference.