TEXAS · WELLS · LEE COUNTY · API 42-287-30637 · DISTRICT 03
Vivian Unit #1
Lee County · Giddings (Austin Chalk-3) field · Producing · Vertical
- Fields on the latest permit · any of 3
- Giddings (Austin Chalk-3) · Giddings (Buda) · Giddings (Austin Chalk, Gas)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Vivian Unit #1 (API 42-287-30637) is a well in Lee County operated by Magnolia Oil & Gas Operating LLC, completed March 10, 1980 and listed as producing on the RRC schedule, shut in May 1, 2026.
The RRC has issued one drilling permit, issued January 24, 1980, permitted to 8,280 ft.
It was permitted by U. S. 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 2 leases have reported 12.4K barrels of oil and 230K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by U. S. 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 Apr 2026 |
| Latest permit | U. S. Operating, Inc.Jan 24, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,280
- total depth, ft
- 1
- permits on file
- Jan 24, 1980
- last permit issued
- Mar 10, 1980
- completed
- 12.4K
- cumulative oil, bbl
- 230K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 10, 1980
- Shut in
- May 1, 2026
- 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 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 |
|---|---|---|---|---|---|---|
| Vivian Unit G-3-300795 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 0 | 1.88K | Jul 2025 – Apr 2026 |
| Vivian Unit O-3-12836 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 12.4K | 228K | Jan 1993 – Jun 2025 |
Gas, mcf lease total
Last 12 months 2,042 · prior 12 2,129(-4%)
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Bridge Oil Company, L. P.Jan 1993 → Sep 1994
- 2Parker & Parsley Development L.POct 1994 → Jan 1995
- 3Parker & Parsley Producing L.P.Feb 1995 → May 1996
- 4Costilla Petroleum CorporationJun 1996 → Jan 1997
- 5Costilla Energy, Inc.Feb 1997 → Mar 1999
- 6Petra Oleum Corp.Apr 1999 → Apr 2000
- 7WCS Oil and Gas CorporationMay 2000 → Apr 2005
- 8WCS Oil & Gas CorporationMay 2005 → Aug 2021
- 9Magnolia Oil & Gas Operating LLCSep 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 70949-99 | Drill | U. S. Operating, Inc. | Jan 24, 1980 | Jan 24, 1980 | Feb 4, 1980 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 10, 1980 | Vivian Unit G-3-300795 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Producing · shut in May 1, 2026 | 8,280 |
| Mar 10, 1980 | Vivian Unit O-3-12836 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 350 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 7,875 | -7,525 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,238 | 8,248 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,232 | 12.25 | 490 S |
| 7 | 7,791 | 8.75 | 570 S |
| 2.375 | 8,138 | — | — |
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 | Jan 28, 2026 | Dec 18, 2025 | Yes |
| 00 | Jan 12, 1984 | Mar 25, 1980 | — |
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 42-287-30637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-287-30637 → 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/28730637, documented in the API reference.