WELL · 42-451-30464 · DISTRICT 7
Untermeyer Herbert B #1
Tom Green County · Susan Peak North (Canyon) field · Vertical
Untermeyer Herbert B #1 (API 42-451-30464) is a well in Tom Green County operated by Pittencrieff America Inc., completed April 25, 1979.
The RRC has issued one drilling permit, issued March 5, 1979, permitted to 4,700 ft.
It was permitted by Sunex Energy Corp. and has since transferred to Pittencrieff America Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including B/Coleman Junction, B/Cisco, Palo Pinto, Canyon.
Its 2 leases have reported 31.9K barrels of oil and 44K mcf of gas since January 1993, last reporting in July 2026. The leases carry 17 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
Operator of record
Permitted by Sunex Energy Corp.; the EWA schedule now lists a different operator.
Abilene, TX · P-5 Y, filed Aug 2, 2002 · 111 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pittencrieff America Inc. |
| Production reports | Bustamante Resources LLCthrough Jan 2022 |
| Latest permit | Sunex Energy Corp.Mar 5, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,700
- total depth, ft
- 1
- permits on file
- Mar 5, 1979
- last permit issued
- Apr 25, 1979
- completed
- 31.9K
- cumulative oil, bbl
- 44K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 25, 1979
- Shut in
- —
- Plugged
- —
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 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| North Susan Peak Unit O-9-13648 | Susan Peak, North (Canyon) | Bustamante Resources LLC | 12 | 30.5K | 34.4K | Jul 1994 – Jul 2026 |
| Untermeyer, Herbert "B" O-9-7850 | Susan Peak, North (Canyon) | Pittencrieff America, Inc. | 5 | 1.46K | 9.6K | Jan 1993 – Sep 1994 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pittencrieff America, Inc.Jan 1993 → Jul 1998
- 2Verdad Oil & Gas CorporationAug 1998 → Aug 2001
- 3Millennium Resources, LLC.Sep 2001 → May 2003
- 4Chimera Oil & Gas, IncJun 2003 → Jun 2004
- 5Concho Oilfield Serv & Oper Co.Jul 2004 → May 2019
- 6Bustamante Resources LLCJun 2019 → Jan 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 43703-99 | Drill | Sunex Energy Corp. | Mar 5, 1979 | Mar 5, 1979 | Apr 6, 1979 | 4,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-7850 | — | — | — | — |
| — | — O-9-13648 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,942 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| B/Coleman Junction | 1,990 | -48 |
| B/Cisco | 3,155 | -1,213 |
| Palo Pinto | 3,947 | -2,005 |
| CanyonCANYON SAND | 4,180 | -2,238 |
| StrawnSTRAWN LIMESTONE | 4,530 | -2,588 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,185 | 4,187 | Perforated |
| 4,185 | 4,210 | Perforated |
| 4,207 | 4,210 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 240 | 11 | 130 S |
| 4.5 | 467 | 7.875 | 1,550 S |
| 2.375 | 4,200 | — | — |
| 4.5 | 4,677 | 7.875 | 1,550 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 | Jan 3, 2001 | Jun 8, 2000 | — |
| 00 | Apr 25, 1995 | Apr 5, 1995 | — |
| 00 | Aug 3, 1994 | May 4, 1979 | — |
| 00 | Jan 12, 1984 | May 4, 1979 | — |
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 42-451-30464 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-30464 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 378K
- bbl, all reported
- Jan 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000081580 | H-1 Injection | Active | 100 | 1,200 | 4,185–4,210 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/45130464, documented in the API reference.