WELL · 42-149-33057 · DISTRICT 3
Tannenberger Unit #1OL
Fayette County · Giddings (Austin Chalk Gas) field · Horizontal
Tannenberger Unit #1OL (API 42-149-33057) is a horizontal well in Fayette County operated by Swift Energy Company, completed October 2, 1997.
The RRC has issued one drilling permit, issued July 8, 1997, permitted to 14,000 ft.
Completion filings report 4 formation tops, including Wilcox, Midway, Pecan Gap, Austin Chalk.
Its 2 leases have reported 133K barrels of oil and 1.54M mcf of gas since October 1997, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Jul 7, 2006 · 719 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Swift Energy Company |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Mar 2026 |
| Latest permit | Swift Energy CompanyJul 8, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 1
- permits on file
- Jul 8, 1997
- last permit issued
- Oct 2, 1997
- completed
- 133K
- cumulative oil, bbl
- 1.54M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1997 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 2, 1997
- 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.
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tannenberger Unit O-3-23863 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 2 | 133K | 1.13M | Nov 1999 – Jul 2026 |
| Tannenberger Unit G-3-166584 | Giddings (Austin Chalk, Gas) | Swift Energy Company | 1 | 0 | 412K | Oct 1997 – Oct 2000 |
Gas, mcf lease total
Last 12 months 19,699 · prior 12 29,895(-34%)
Oil, barrels lease total
Last 12 months 3,051 · prior 12 5,366(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Swift Energy CompanyOct 1997 → Jun 2003
- 2Anadarko E&P Company LPJul 2003 → Jul 2007
- 3Enervest Operating, L.L.C.Aug 2007 → Jul 2018
- 4Magnolia Oil & Gas Operating LLCAug 2018 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 464665-99 | Drill | Swift Energy Company | Jul 8, 1997 | Jul 8, 1997 | Jul 20, 1997 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-166584 | — | — | — | — |
| — | — O-3-23863 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 282 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wilcox | 4,770 | -4,488 |
| Midway | 9,030 | -8,748 |
| Pecan Gap | 11,450 | -11,168 |
| Austin Chalk | 12,065 | -11,783 |
| Austin Chalk | — | — |
| Midway | — | — |
| Pecan Gap | — | — |
| Wilcox | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,088 | 15,494 | Perforated |
| 12,088 | 16,984 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,678 | 14.75 | 1,600 S |
| 10.75 | 12,088 | 9.875 | 580 S |
| 7.625 | 12,088 | 9.875 | 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 | Aug 15, 2017 | Jun 29, 2017 | — |
| 00 | Sep 6, 2000 | — | — |
| 00 | Mar 18, 1998 | Nov 3, 1997 | Yes |
| 00 | Feb 25, 1998 | — | — |
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 42-149-33057 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-149-33057 → 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/14933057, documented in the API reference.