WELL · 42-163-31531 · DISTRICT 1
Heiser #1
Frio County · Pearsall (Austin Chalk) field · Vertical
Heiser #1 (API 42-163-31531) is a plugged well in Frio County, plugged July 27, 2004, last operated by Crystal Resources Inc.
The RRC has issued one drilling permit, issued December 14, 1977, permitted to 7,000 ft.
It was permitted by Saxon Oil Company and has since transferred to Crystal Resources Inc on the wellbore schedule.
Completion filings report 4 formation tops, including Carrizo, Wilcox, Midway, Olmos.
Its lease has reported 3 barrels of oil and 1 mcf of gas since January 1993, last reporting in March 2008. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Saxon Oil Company; the EWA schedule now lists a different operator.
Jourdanton, TX · P-5 Y, filed Sep 11, 2015
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crystal Resources Inc |
| Production reports | Ashby, Andrew M.through Jan 1997 |
| Latest permit | Saxon Oil CompanyDec 14, 1977 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 1
- permits on file
- Dec 14, 1977
- last permit issued
- Dec 8, 1990
- completed
- 3
- cumulative oil, bbl
- 1
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 8, 1990
- Shut in
- —
- Plugged
- Jul 27, 2004
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heiser O-1-5535 | Pearsall (Austin Chalk) | Crystal Resources, Inc | 3 | 3 | 1 | Jan 1993 – Mar 2008 |
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.
- 1Ashby, Andrew M.Jan 1997 → Jan 1997
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 10319-99 | Drill | Saxon Oil Company | Dec 14, 1977 | Dec 14, 1977 | Nov 3, 1977 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-5535 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 600 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,965 | 4,976 | Perforated |
| 4,976 | 4,995 | Perforated |
| 5,070 | 5,090 | Perforated |
| 5,500 | 5,530 | Perforated |
| 6,536 | 6,977 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 217 | 12.25 | 200 S |
| — | 3,585 | — | — |
| 4.5 | 7,050 | 7.875 | 2,580 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 | Jun 6, 1997 | Mar 14, 1997 | — |
| 00 | Jan 12, 1984 | Nov 30, 1977 | — |
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 42-163-31531 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-31531 → 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
- 197K
- bbl, last 12 reported months
- 2M
- bbl, all reported
- Feb 1998
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000074336 | W-14 Disposal | Plugged Aug 9, 2004 | 5,000 | 2,400 | 4,900–5,600 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 197,408 · prior 12 118,900(+66%)
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/16331531, documented in the API reference.