TEXAS · WELLS · LEE COUNTY · TONN UNIT LEASE · API 42-287-32365 · DISTRICT 03
Tonn Unit #1H
Lee County · Giddings (Austin Chalk-3) field · Producing · Horizontal · Sidetrack
Tonn Unit #1H (API 42-287-32365) is a horizontal well in Lee County operated by Magnolia Oil & Gas Operating LLC, completed July 3, 1995 and listed as producing on the RRC schedule.
The RRC has issued 3 drilling permits (amended once) between 1992 and 1995, permitted to 10,440 ft.
It was permitted by Union Pacific Austin Chalk CO. 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 115K barrels of oil and 3.48M mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Union Pacific Austin Chalk Co.; 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
- 615
- Phone
- (713) 842-9050
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Apr 2026 |
| Latest permit | Union Pacific Austin Chalk Co.Sep 18, 1995 |
- 10,440
- total depth, ft
- 4
- permits on file
- Sep 18, 1995
- last permit issued
- Jul 3, 1995
- completed
- 115K
- cumulative oil, bbl
- 3.48M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 3, 1995
- 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tonn Unit O-3-21950 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 2 | 115K | 3.48M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 14,306 · prior 12 16,960(-16%)
Oil, barrels lease total
Last 12 months 270 · prior 12 533(-49%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dynamic Production, Inc.Jan 1993 → Jul 1994
- 2Gemini Exploration CompanyAug 1994 → Apr 1995
- 3Union Pacific Austin Chalk Co.May 1995 → Jan 2001
- 4Rme Austin Chalk CompanyFeb 2001 → Nov 2002
- 5Anadarko Austin Chalk CompanyDec 2002 → Feb 2006
- 6Anadarko E&P Company LPMar 2006 → Jul 2007
- 7Enervest Operating, L.L.C.Aug 2007 → Jul 2018
- 8Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 439794-99 | Recompletion · sidetrack | Union Pacific Austin Chalk Co. | Sep 11, 1995 | Sep 18, 1995 | — | 8,900 |
| 436132-99 | Recompletion · sidetrack | Union Pacific Austin Chalk Co. | May 19, 1995 | May 26, 1995 | May 29, 1995 | 8,900 |
| 406834-98 | Drill | Dynamic Production, Inc. | Mar 25, 1993 | Dec 4, 1992 | Dec 19, 1992 | 8,200 |
| 406834-99 | Drill | Dynamic Production, Inc. | Dec 4, 1992 | Dec 4, 1992 | — | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 3, 1995 | Tonn Unit O-3-21950 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Producing | 10,440 |
| Jul 3, 1995 | Tonn Unit O-3-21950 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Producing | 10,440 |
| Jan 22, 1993 | Tonn Unit O-3-21950 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 463 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 7,320 | -6,857 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,411 | 8,047 | Perforated |
| 7,411 | 8,112 | Perforated |
| 7,411 | 10,440 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,870 | 14.75 | 1,808 S |
| 7 | 7,411 | 7.875 | 285 S |
| 7 | 7,411 | 9.875 | 285 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 | Nov 6, 1995 | Aug 23, 1995 | Yes |
| 00 | Oct 11, 1995 | Mar 19, 1993 | Yes |
| 00 | Apr 20, 1993 | Mar 19, 1993 | Yes |
| 00 | Apr 12, 1993 | — | — |
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 42-287-32365 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-287-32365 → 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/28732365, documented in the API reference.