OPERATORS · RRC 75790 · P-5 STATUS Y
Blocker Expl Co
Houston, TX
Watch this operatorBlocker Expl CO has filed no drilling permits in the past 12 months; its most recent permit was issued February 9, 1982.
The RRC wellbore file lists 4 wells under its operatorship.
80 drilling permits have been issued to this operator number since 1978; its P-5 organization report was last filed December 15, 1987.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 4 of record
- 0
- leases it reports
- —
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026
From permit to spud
FROM THE DATES ON ITS W-1 PERMITS · ALL TIME
A permit is a plan, not a well. These figures count only permits old enough to have spudded, six months and more, and read the spud, cancel, and expiry dates the RRC records on each one.
- 56%
- spud rate · 45 of 80 mature permits
- 35
- median days permit to spud · middle half 17–70
- 0
- spuds, last 180 days
- 3%
- cancelled · 2 permits
- 33
- expired undrilled
- 20
- permits a year over 4 active years
Where
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
| County | 12 mo | All time | Wells | Last |
|---|---|---|---|---|
| Webb county → | — | 28 | 1 | Mar 11, 1980 |
| Nolan county → | — | 7 | 1 | Feb 26, 1981 |
| Limestone county → | — | 6 | 0 | Jun 25, 1981 |
| Henderson county → | — | 5 | 1 | Feb 9, 1982 |
| Anderson county → | — | 4 | 0 | Dec 31, 1980 |
| Hidalgo county → | — | 3 | 0 | Apr 13, 1981 |
| Nueces county → | — | 3 | 0 | Feb 17, 1981 |
| Brazoria county → | — | 2 | 0 | Oct 2, 1980 |
| Brooks county → | — | 2 | 0 | Nov 8, 1979 |
| Colorado county → | — | 2 | 0 | Sep 15, 1980 |
| Duval county → | — | 2 | 0 | Mar 17, 1980 |
| Galveston county → | — | 2 | 0 | Aug 11, 1981 |
| Orange county → | — | 2 | 0 | Nov 3, 1980 |
| Washington county → | — | 2 | 0 | Feb 12, 1981 |
| Zapata county → | — | 2 | 0 | Aug 11, 1980 |
| Bee county → | — | 1 | 0 | Jul 24, 1980 |
| Dawson county → | — | 1 | 1 | Sep 11, 1980 |
| Fort Bend county → | — | 1 | 0 | Oct 27, 1981 |
| Freestone county → | — | 1 | 0 | Jun 29, 1981 |
| Goliad county → | — | 1 | 0 | Oct 31, 1979 |
| Liberty county → | — | 1 | 0 | Nov 3, 1978 |
| Live Oak county → | — | 1 | 0 | Jun 19, 1979 |
| Wood county → | — | 1 | 0 | Feb 13, 1980 |
All 80 permits, searchable → · Leases it reports → · On the map →
Formations in its completed wells
Tops reported on completion filings for wells it operates. RRC wellbore file. About tops →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| Olmos | 4 | 0 |
| Rodessa | 3 | 0 |
| Cotton Valley | 3 | 0 |
| Eagle Ford | 2 | 0 |
| Glen Rose | 2 | 0 |
| Sligo | 2 | 0 |
| Pettit | 2 | 0 |
| Midway | 2 | 0 |
| Escondido | 2 | 0 |
| Austin Chalk | 2 | 0 |
| Travis Peak | 1 | 0 |
| Pecan Gap | 1 | 0 |
| Wilcox | 1 | 0 |
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. How production is reported →
- 0
- bbl oil, last 12 reported months
- —
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 0
- bbl oil since reporting began
No lease production reported under this operator number in the last three years.
Beyond the permit record
RRC wellbore file
Wells of record
- 4
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 3
- plugged
How it got them
- 4
- permitted itself
- 0
- acquired from others
- 23
- permitted, now run by others
Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →
Permit types
Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →
| Type | 12 mo | Prior 12 | All time |
|---|---|---|---|
| Drill | 0 | 0 | 70 |
| Recompletion | 0 | 0 | 9 |
| Other | 0 | 0 | 1 |
Fields
RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.
| Field | Wells | Producing |
|---|---|---|
| Blocker Ranch (Olmos N-4)9600550 | 1 | 0 |
| Patricia Northeast (Spraberry)69566500 | 1 | 0 |
| Thomas Lake (Cotton Valley)89478300 | 1 | 0 |
| Thomas Ranch (Ellenburger)89490500 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Dec 15, 1987
- Address
- 1201 Dairy Ashford, Ste 200
- Houston, TX 77079
- Officers and agents
- Blocker, John R. · Chairman/Ceo/President
- Blocker, John R., Jr. · Vice President
- Bragg, Paul A. · Vice President/Secretary/Treasur
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 150148 | Feb 9, 1982 | Feb 9, 1982 | Blocker Exploration Co. | Henderson | First Bancorp, Inc. #1 | 12,500 | 21330276 |
| 138249 | Oct 27, 1981 | Oct 27, 1981 | Blocker Exploration Co. | Fort Bend | Tucker Trust Unit #1 | 10,520 | 15731266 |
| 129538 | Aug 11, 1981 | Aug 11, 1981 | Blocker Exploration Co. | Galveston | TX Commerce Bank Natl Assoc Unit #1 | 12,300 | 16730859 |
| 122989 | Jun 29, 1981 | Jun 29, 1981 | Blocker Exploration Co. | Freestone | Hill, F. S. et AL #1 | 9,692 | 16130677 |
| 122588 | Jun 25, 1981 | Jun 25, 1981 | Blocker Exploration Co. | Limestone | Blocker- Tufco #1 | 11,000 | 29330566 |
| 122585 | Jun 25, 1981 | Jun 25, 1981 | Blocker Exploration Co. | Limestone | Lowry, Floyd A. #1 | 11,500 | 29330565 |
| 121462 | Jun 17, 1981 | Jun 17, 1981 | Blocker Exploration Co. | Henderson | Dennis, A. A. Jr. UNIT#1 #2 | 9,150 | 21330329 |
| 116165 | Apr 13, 1981 | Apr 13, 1981 | Blocker Exploration Co. | Hidalgo | Youngblood, Ella Thompson et AL #1 | 8,650 | 21531122 |
| 109711 | Feb 26, 1981 | Feb 26, 1981 | Blocker Exploration Co. | Nolan | Adams, John G. "A" #1 | 6,000 | 35331061 |
| 111668 | Feb 17, 1981 | Feb 17, 1981 | Blocker Exploration Co. | Nueces | Dunn, Earl C., Sr. et AL #1 | 6,914 | 35531690 |
| 108640 | Feb 17, 1981 | Feb 17, 1981 | Blocker Exploration Co. | Nolan | Hudman, Thelma #1 | 6,000 | 35331060 |
| 108289 | Feb 12, 1981 | Feb 12, 1981 | Blocker Exploration Co. | Washington | Ward, Joseph #1 | 12,000 | 47730404 |
| 106679 | Jan 28, 1981 | Jan 28, 1981 | Blocker Exploration Co. | Nolan | Adams, John #3 | 5,200 | 35330717 |
| 103567 | Dec 31, 1980 | Dec 31, 1980 | Blocker Exploration Co. | Anderson | Cady, William R. et AL #4 | 10,000 | 00131049 |
| 103262 | Dec 29, 1980 | Dec 29, 1980 | Blocker Exploration Co. | Anderson | Cady, William R. et AL #3 | 9,200 | 00131048 |
About this data
Registration from the RRC P-5 organization report, refreshed weekly. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports at the last vintage; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly.
Developers: this page as JSON is GET /v1/data/operators/tx/75790, documented in the API reference.