TEXAS · WELLS · KARNES COUNTY · API 42-255-34671 · DISTRICT 02
Mumford Unit #1H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Mumford Unit #1H (API 42-255-34671) is a horizontal well in Karnes County operated by Magnolia Oil & Gas Operating LLC, completed December 12, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 14, 2015, permitted to 10,547 ft.
It was permitted by Blackbrush O & G, LLC and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yegua, Queen City, Reklaw, Carrizo.
Its 2 leases have reported 114K barrels of oil and 313K mcf of gas since August 2015, last reporting volume in December 2025. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Blackbrush O & G, LLC; 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 | Blackbrush O & G, LLCJul 14, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,547
- total depth, ft
- 2
- permits on file
- Jul 14, 2015
- last permit issued
- Dec 12, 2016
- completed
- 114K
- cumulative oil, bbl
- 313K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2016 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 12, 2016
- 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 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 |
|---|---|---|---|---|---|---|
| Mumford Unit G-2-295242 | Eagleville (Eagle Ford-2) | Magnolia Oil & Gas Operating LLC | 1 | 113K | 309K | Dec 2016 – Apr 2026 |
| Mumford Unit O-2-11114 | Eagleville (Eagle Ford-2) | Magnolia Oil & Gas Operating LLC | 2 | 453 | 3.64K | Aug 2015 – Jan 2022 |
Gas, mcf lease total
Last 12 months 4,979 · prior 12 6,241(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Magnolia Oil & Gas Operating LLCDec 2016 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 808176-98 | Drill | Blackbrush O & G, LLC | Aug 13, 2015 | Jul 14, 2015 | Aug 16, 2015 | 11,000 |
| 808176-99 | Drill | Blackbrush O & G, LLC | Jul 7, 2015 | Jul 14, 2015 | Aug 17, 2015 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 12, 2016 | Mumford Unit G-2-295242 | Eagleville (Eagle Ford-2) | Magnolia Oil & Gas Operating LLC | Producing | 10,547 |
| Dec 12, 2016 | Mumford Unit O-2-11114 | Eagleville (Eagle Ford-2) | Magnolia Oil & Gas Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 318 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 800 | -482 |
| Queen City | 2,403 | -2,085 |
| Reklaw | 3,200 | -2,882 |
| Carrizo | 3,338 | -3,020 |
| Carrizo | 3,485 | -3,167 |
| WilcoxWILCOX - DISPOSAL | 4,447 | -4,129 |
| WilcoxWILCOX - DISPOSAL | 4,470 | -4,152 |
| Austin ChalkAUSTIN CHALK - H2S | 10,013 | -9,695 |
| Austin ChalkAUSTIN CHALK - H2S | 10,207 | -9,889 |
| Eagle FordEAGLE FORD - H2S | 10,326 | -10,008 |
| Eagle FordEAGLE FORD - H2S | 10,348 | -10,030 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,701 | 15,335 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,282 | 12.25 | 839 S |
| 5.5 | 15,397 | 8.75 | 2,173 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 | Aug 10, 2023 | Jul 19, 2023 | Yes |
| 00 | Feb 27, 2017 | Feb 14, 2017 | Yes |
| 00 | Mar 3, 2016 | Jan 25, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Jul 24, 2018. Gamma ray. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Gamma RaySpans Reklaw, Carrizo, Wilcox, Austin Chalk, Eagle Ford | LAS + TIFF | 3,282 to 15,495 | Jul 24, 2018 | 0.97 + 0.04 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-255-34671 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-34671 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/25534671, documented in the API reference.