WELL · 42-173-31500 · DISTRICT 8
Blalock #1
Glasscock County · Dewey Lake (Wolfcamp) field · Vertical
Blalock #1 (API 42-173-31500) is a plugged well in Glasscock County, plugged January 25, 2018, last operated by Royalty Land & Dev. CO. Inc..
The RRC has issued one drilling permit, issued November 4, 1983, permitted to 11,500 ft.
It was permitted by Chapman Exploration, Inc. and has since transferred to Royalty Land & Dev. CO. Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Wolfcamp, Strawn, Fusselman.
Its lease has reported 183K barrels of oil and 395K mcf of gas since January 1993, last reporting in November 2019. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chapman Exploration, Inc.; the EWA schedule now lists a different operator.
Wolfforth, TX · P-5 Y, filed Oct 4, 2025 · 32 permits on file · (806) 789-7727
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Royalty Land & Dev. Co. Inc. |
| Production reports | Royalty Land & Dev. Co., Inc.through Aug 2019 |
| Latest permit | Chapman Exploration, Inc.Nov 4, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,500
- total depth, ft
- 1
- permits on file
- Nov 4, 1983
- last permit issued
- Jan 28, 2012
- completed
- 183K
- cumulative oil, bbl
- 395K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 2019
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 28, 2012
- Shut in
- —
- Plugged
- Jan 25, 2018
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Blalock O-10-28869 | Dewey Lake (Wolfcamp) | Royalty Land & Dev. Co., Inc. | 5 | 183K | 395K | Jan 1993 – Nov 2019 |
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.
- 1Farmers of Tulsa Energy Corp.Jan 1993 → Oct 1995
- 2Royalty Land & Dev. Co., Inc.Nov 1995 → Aug 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 219877-99 | Drill | Chapman Exploration, Inc. | Nov 1, 1983 | Nov 4, 1983 | Feb 11, 1984 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-28869 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,541 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,360 | 8,430 | Perforated |
| 8,398 | 8,430 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.5 | 368 | 17.5 | 300 S |
| 13.375 | 368 | 17.5 | 300 S |
| 9.625 | 3,415 | 12.25 | 1,100 S |
| 7 | 9,843 | 8.75 | 380 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 | Aug 29, 2013 | Feb 10, 2012 | — |
| 00 | May 4, 1984 | Apr 25, 1984 | — |
| 00 | May 2, 1984 | Apr 25, 1984 | — |
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 42-173-31500 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31500 → 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
- 5.45K
- bbl, last 12 reported months
- 147K
- bbl, all reported
- Jan 2018
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000103788 | H-1 Injection | Plugged Feb 6, 2018 | 3,000 | 2,500 | 8,360–8,430 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 5,448 · prior 12 36,275(-85%)
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/17331500, documented in the API reference.