WELL · 42-177-34382 · DISTRICT 1
Chalk Talk A #4H
Gonzales County · Peach Creek (Austin Chalk) field · Horizontal
Chalk Talk A #4H (API 42-177-34382) is a horizontal well in Gonzales County operated by Millennium Exploration CO. LLC, completed May 19, 2021.
The RRC has issued one drilling permit, issued March 12, 2021, permitted to 8,000 ft.
Completion filings report 10 formation tops, including Pecan Gap, Anacacho, Austin Chalk, Buda.
Its 2 leases have reported 106K barrels of oil and 12K mcf of gas since June 2020, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Millennium Exploration Co. LLC
San Antonio, TX · P-5 Y, filed Sep 4, 2025 · 41 permits on file · (210) 723-3789
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Millennium Exploration Co. LLC |
| Production reports | Nobel Petroleum USA Inc.through Apr 2024 |
| Latest permit | Millennium Exploration Co. LLCMar 12, 2021 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Mar 12, 2021
- last permit issued
- May 19, 2021
- completed
- 106K
- cumulative oil, bbl
- 12K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 19, 2021
- Shut in
- —
- Plugged
- —
Surface location
29.475826, -97.431340
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Gonzales County.
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Whistling Straits O-1-20343 | Peach Creek (Austin Chalk) | Nobel Petroleum USA Inc. | 3 | 34.5K | 0 | Oct 2020 – Jul 2026 |
| Chalk Talk A O-1-20224 | Peach Creek (Austin Chalk) | Millennium Exploration Co. LLC | 2 | 71.1K | 12K | Jun 2020 – Mar 2023 |
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.
- 1Millennium Exploration Co. LLCJun 2020 → Jul 2022
- 2Nobel Petroleum USA Inc.Nov 2023 → Apr 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 868247-99 | Drill | Millennium Exploration Co. LLC | Mar 8, 2021 | Mar 12, 2021 | Apr 26, 2021 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-20224 | — | — | — | — |
| — | — O-1-20343 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 266 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 7,325 | -7,059 |
| Anacacho | 7,342 | -7,076 |
| Austin ChalkAUSTIN CHALK - H2S | 7,485 | -7,219 |
| BudaBUDA - H2S, DISPOSAL | — | — |
| Carrizo | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| Navarro | — | — |
| Reklaw | — | — |
| WilcoxWILCOX - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,669 | 12,166 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,612 | 12.25 | 701 S |
| 7 | 7,538 | 8.75 | 635 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 | Mar 15, 2023 | Jun 17, 2021 | Yes |
| 00 | Aug 10, 2021 | Jun 17, 2021 | 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 42-177-34382 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-34382 → 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.
Chalk Talk A42-177-34315
0.4 KM · Millennium Exploration Co. LLC · Section with this well →
| Anacacho | 7,342 | -7,076 |
| Austin Chalk | 7,497 | -7,231 |
| Buda | — | |
| Wilcox | — | |
| Reklaw | — | |
| Navarro | — | |
| Edwards | — | |
| Eagle Ford | — |
9 TOPS · FIRST 8
Whistling Straits Redevelopment42-177-34337
0.8 KM · Millennium Exploration Co. LLC · Section with this well →
| Pecan Gap | 7,325 | -7,061 |
| Anacacho | 7,342 | -7,078 |
| Austin Chalk | 7,497 | -7,233 |
| Buda | — | |
| Edwards | — | |
| Eagle Ford | — | |
| Carrizo | — | |
| Wilcox | — |
10 TOPS · FIRST 8
Chalk Talk42-177-34292
3.8 KM · Millennium Exploration Co. LLC · Section with this well →
| Anacacho | 8,224 | -7,963 |
| Austin Chalk | 8,439 | -8,178 |
| Eagle Ford | 8,882 | -8,621 |
| Reklaw | — | |
| Carrizo | — | |
| Edwards | — | |
| Navarro | — | |
| Wilcox | — |
9 TOPS · FIRST 8
City of Gonzales42-177-34528
5.2 KM · LP Operating, LLC · Section with this well →
| Navarro | 5,974 | -5,674 |
| Austin Chalk | 7,075 | -6,775 |
| Eagle Ford | 7,490 | -7,190 |
| Buda | 7,544 | -7,244 |
| Wilcox | — | |
| Carrizo | — | |
| Edwards | — | |
| Reklaw | — |
Deberry42-177-34483
5.8 KM · LP Operating, LLC · Section with this well →
| Austin Chalk | 6,900 | -6,605 |
| Eagle Ford | 7,325 | -7,030 |
| Buda | 7,370 | -7,075 |
| Carrizo | — | |
| Wilcox | — | |
| Reklaw | — | |
| Navarro | — | |
| Edwards | — |
Dubose Unit No. 242-177-33851
6.0 KM · Penn Virginia Oil & Gas, L.P. · Section with this well →
| Reklaw | 2,300 | -2,048 |
| Carrizo | 2,600 | -2,348 |
| Wilcox | 3,400 | -3,148 |
| Navarro | 6,883 | -6,631 |
| Austin Chalk | 8,547 | -8,295 |
| Eagle Ford | 9,049 | -8,797 |
| Edwards | — | |
| Buda | — |
Dubose Unit No. 142-177-33855
6.0 KM · Penn Virginia Oil & Gas, L.P. · Section with this well →
| Reklaw | 2,300 | -2,048 |
| Carrizo | 2,600 | -2,348 |
| Wilcox | 3,500 | -3,248 |
| Navarro | 6,881 | -6,629 |
| Austin Chalk | 8,573 | -8,321 |
| Eagle Ford | 9,044 | -8,792 |
| Edwards | — | |
| Buda | — |
Dubose Unit No. 142-177-33850
6.0 KM · Penn Virginia Oil & Gas, L.P. · Section with this well →
| Reklaw | 2,300 | -2,048 |
| Carrizo | 2,600 | -2,348 |
| Wilcox | 3,500 | -3,248 |
| Navarro | 6,927 | -6,675 |
| Austin Chalk | 8,549 | -8,297 |
| Eagle Ford | 8,997 | -8,745 |
| Buda | — | |
| 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/17734382, documented in the API reference.