TEXAS · WELLS · BRAZOS COUNTY · JONES, C. B. LEASE · API 42-041-31523 · DISTRICT 03
Jones C. B. #1
Brazos County · Giddings (Austin Chalk-3) field · Shut In · Horizontal · Sidetrack
Jones C. B. #1 (API 42-041-31523) is a horizontal well in Brazos County operated by Magnolia Oil & Gas Operating LLC, completed November 23, 1992 and listed as shut in on the RRC schedule, shut in August 1, 2024.
The RRC has issued 2 drilling permits (amended once) between 1991 and 1992, permitted to 12,338 ft.
It was permitted by Union Pacific Resources Company and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Midway, Navarro, Pecan Gap, Austin Chalk.
Its lease has reported 147K barrels of oil and 712K mcf of gas since January 1993, last reporting volume in April 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 Resources Company; 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 | Magnolia Oil & Gas Operating LLC |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Apr 2026 |
| Latest permit | Union Pacific Resources CompanySep 22, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,338
- total depth, ft
- 3
- permits on file
- Sep 22, 1992
- last permit issued
- Nov 23, 1992
- completed
- 147K
- cumulative oil, bbl
- 712K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 23, 1992
- Shut in
- Aug 1, 2024
- 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 |
|---|---|---|---|---|---|---|
| Jones, C. B. O-3-21411 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 2 | 147K | 712K | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 696 · prior 12 1,238(-44%)
Gas, mcf lease total
Last 12 months 2,619 · prior 12 6,951(-62%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Pacific Resources CompanyJan 1993 → Jan 2001
- 2Rme Petroleum CompanyFeb 2001 → Nov 2002
- 3Anadarko E&P Company LPDec 2002 → Jul 2007
- 4Enervest Operating, L.L.C.Aug 2007 → Jul 2018
- 5Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 403646-99 | Recompletion · sidetrack | Union Pacific Resources Company | Sep 18, 1992 | Sep 22, 1992 | Oct 16, 1992 | 12,500 |
| 391099-98 | Drill | Union Pacific Resources Company | Oct 11, 1991 | Aug 21, 1991 | Nov 26, 1991 | 14,200 |
| 391099-99 | Drill | Union Pacific Resources Company | Aug 21, 1991 | Aug 21, 1991 | — | 14,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 23, 1992 | Jones C. B. O-3-21411 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Shut In · shut in Aug 1, 2024 | 12,338 |
| Nov 23, 1992 | Jones C. B. O-3-21411 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Shut In · shut in Aug 1, 2024 | 12,338 |
Formation tops
As filed on W-2/G-1. Subsea from 214 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,044 | -5,830 |
| Navarro | 7,152 | -6,938 |
| Pecan Gap | 8,802 | -8,588 |
| Austin Chalk | 9,544 | -9,330 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,730 | 12,338 | Perforated |
| 11,285 | — | Perforated |
| 12,325 | — | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,450 | 14.75 | 1,190 S |
| 7.625 | 9,730 | 9.875 | 340 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 | Mar 3, 1993 | Jan 25, 1993 | — |
| 00 | Apr 15, 1992 | Jan 31, 1992 | Yes |
| 00 | Mar 30, 1992 | — | — |
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 42-041-31523 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-31523 → 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/04131523, documented in the API reference.