WELL · 42-331-35056 · DISTRICT 3
Cora #1HA
Milam County · Giddings (Austin Chalk-3) field · Producing · Horizontal
Cora #1HA (API 42-331-35056) is a horizontal well in Milam County operated by Magnolia Oil & Gas Operating LLC, completed March 23, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 12, 2018, permitted to 6,500 ft.
It was permitted by Treadstone Energy Prtnr OP, LLC and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Midway, Navarro, Pecan Gap, Giddings (Austin Chalk-3).
Its lease has reported 257K barrels of oil and 257K mcf of gas since March 2019, last reporting in July 2026.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Treadstone Energy Prtnr OP, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 615 permits on file · (713) 345-6206
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 | Treadstone Energy Prtnr OP, LLCNov 12, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Nov 12, 2018
- last permit issued
- Mar 23, 2019
- completed
- 257K
- cumulative oil, bbl
- 257K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 23, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
30.812342, -96.652030
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Milam County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cora O-3-27558 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 257K | 257K | Mar 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 6,511 · prior 12 9,185(-29%)
Gas, mcf lease total
Last 12 months 21,407 · prior 12 44,244(-52%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Treadstone Energy Prtnr OP, LLCMar 2019 → Nov 2021
- 2LRR Pecos Valley, LLCDec 2021 → Nov 2023
- 3Magnolia Oil & Gas Operating LLCDec 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 846681-99 | Drill | Treadstone Energy Prtnr OP, LLC | Nov 9, 2018 | Nov 12, 2018 | Jan 6, 2019 | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-27558 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 296 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,096 | 12,298 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,495 | 13.5 | 1,325 S |
| 7.625 | 6,086 | 9.875 | 505 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 | Oct 1, 2019 | Jun 13, 2019 | Yes |
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 42-331-35056 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-331-35056 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
AJ42-331-35055
0.0 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Midway | 2,038 | -1,743 |
| Navarro | 2,994 | -2,699 |
| Pecan Gap | 4,239 | -3,944 |
| Giddings (Austin Chalk-3) | 5,482 | -5,187 |
| Edwards | — |
Holden-Moore Unit42-331-35006
0.0 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 3,016 | -2,719 |
| Pecan Gap | 4,223 | -3,926 |
| Giddings (Austin Chalk-3) | 5,482 | -5,185 |
| Edwards | — |
Holden-Moore Unit42-331-35007
0.0 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 3,003 | -2,706 |
| Pecan Gap | 4,244 | -3,947 |
| Austin Chalk | 5,484 | -5,187 |
| Buda | 6,066 | -5,769 |
| Edwards | — |
Wolf Unit42-331-35111
0.7 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 2,902 | -2,608 |
| Pecan Gap | 4,188 | -3,894 |
| Wolf City | 4,347 | -4,053 |
| Austin Chalk | 5,431 | -5,137 |
| Edwards | — |
Tiger Unit42-331-33521
0.8 KM · Union Pacific Resources Company · Section with this well →
| Navarro | 2,900 | -2,593 |
| Pecan Gap | 4,210 | -3,903 |
| Austin Chalk | 5,454 | -5,147 |
| Austin Chalk | 5,454 | -5,147 |
| Buda | 6,018 | -5,711 |
| Georgetown | 6,124 | -5,817 |
| Edwards | 6,418 | -6,111 |
| Travis Peak | 9,130 | -8,823 |
11 TOPS · FIRST 8
Tate42-331-35104
1.3 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 2,998 | -2,694 |
| Austin Chalk | 5,400 | -5,096 |
| Edwards | — |
Amelia Kay42-331-35103
1.3 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 3,008 | -2,704 |
| Pecan Gap | 4,235 | -3,931 |
| Austin Chalk | 5,400 | -5,096 |
| Edwards | — |
Robyn42-331-35054
1.9 KM · Treadstone Energy Prtnr OP, LLC · Section with this well →
| Navarro | 3,000 | -2,687 |
| Pecan Gap | 4,200 | -3,887 |
| Giddings (Austin Chalk-3) | 5,553 | -5,240 |
| Edwards | — |
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/33135056, documented in the API reference.