Home Fields HOWARD GLASSCOCK (CONSOLIDATED) Value, all time
93% of the register's 231
Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 214 leases in this field that have a page here — 93% of the register's 231 — so it understates the field.
Production, 2025 The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.
Wells In the field Producing Produced in 2025 Also produced Cumulative Oil 2,320 940 1,479,665 bbl 118,628 mcf casinghead 77,686,248 bbl since discovery
The discovery well's oil measured 49.9° API gravity, perforated at 5,890 ft.
Hydrogen sulphide
Spacing rule What the Commission requires of a well on this field.
Wells Rule Effective From the lease line Between wells Acres per unit Max diagonal Oil B 2014-01-07 200 ft 0 ft 10 0 ft Oil O 2014-01-07 200 ft 0 ft 5 99,999 ft
Commission remarks: P-15'S, ACRES LIST, AND LEASE PLATS REQUIRED.
Leases in this field Every lease here files this field's number with the Commission and has a page on this site.
Showing the 200 largest of 214 leases, by the value we compute. Every one of them is in the sitemap.
Lease Operator Value GLASSCOCK, HOWARD W. (G-S) UNIT BASA RESOURCES, INC. $407.4 M SETTLES, W. R. -A- CITATION OIL & GAS CORP. $119.6 M SETTLES, W. R. CITATION OIL & GAS CORP. $100.1 M ROBERTS, DORA -BDE- BASA RESOURCES, INC. $93.9 M ROBERTS, DORA BASA RESOURCES, INC. $86.5 M KLOH ETAL APACHE CORPORATION $78.6 M ROBERTS, DORA CITATION OIL & GAS CORP. $72.5 M CHALK, G. O. -D- CITATION OIL & GAS CORP. $70.0 M KLOH GRAYROCK ENERGY II, LLC $69.2 M HYMAN, SARAH CITATION OIL & GAS CORP. $66.3 M OVERTON, B. CITATION OIL & GAS CORP. $63.5 M CHALK, G. O. -C- CITATION OIL & GAS CORP. $49.0 M HOWARD GLASSCOCK EAST UNIT APACHE CORPORATION $42.7 M OWEN-CHALK CITATION OIL & GAS CORP. $40.8 M CHALK, G. O. GRAYROCK ENERGY II, LLC $36.9 M EASON, S. T. CITATION OIL & GAS CORP. $35.5 M CHALK, G. O.-G- CITATION OIL & GAS CORP. $35.4 M WARDER BASA RESOURCES, INC. $34.7 M CHALK, OTIS UNITEX OIL & GAS, L.L.C. $32.2 M ROBERTS, DORA APACHE CORPORATION $31.0 M CHALK, G.O.-B- CITATION OIL & GAS CORP. $30.4 M SETTLES, W. R. GRAYROCK ENERGY II, LLC $29.7 M CHALK,MARY CITATION OIL & GAS CORP. $24.4 M KLOH -A- BASA RESOURCES, INC. $23.3 M CHALK, G.O.-E- CITATION OIL & GAS CORP. $23.1 M CHALK, OTIS APACHE CORPORATION $21.4 M ROBERTS, DORA -A- BASA RESOURCES, INC. $19.1 M DOUTHIT-B 1 CITATION OIL & GAS CORP. $18.9 M CHALK, SLOAN CITATION OIL & GAS CORP. $17.1 M KLOH-RUMSEY EXTEX OPERATING COMPANY $16.7 M CLAY GRAYROCK ENERGY II, LLC $16.2 M PHILLIPS GRAYROCK ENERGY II, LLC $15.9 M SETTLES, W. R. BASA RESOURCES, INC. $15.0 M REED BROTHERS DE GRAYROCK ENERGY II, LLC $14.9 M CHALK EXTEX OPERATING COMPANY $13.3 M SETTLES-YATES UNIT CONOCOPHILLIPS COMPANY $12.4 M DOUTHIT, E. W. DE GRAYROCK ENERGY II, LLC $11.3 M CHALK, G. O.-A- CITATION OIL & GAS CORP. $10.2 M REED. L. R & W. N. GRAYROCK ENERGY II, LLC $9.8 M CLAY, H. R. GRAYROCK ENERGY II, LLC $9.6 M REED, W. N. & L. & R. CITATION OIL & GAS CORP. $9.3 M CHALK, G. O. -F- CITATION OIL & GAS CORP. $9.1 M CLAY, H. R.-E- LANDMARK IP, LLC $8.5 M SETTLES -D- BASA RESOURCES, INC. $8.4 M OVERTON, B.-A- CITATION OIL & GAS CORP. $8.3 M BATJER, PATTI -B- GRAYROCK ENERGY II, LLC $8.2 M DOUTHIT CITATION OIL & GAS CORP. $8.2 M DOUTHIT, E. W. -A- GRAYROCK ENERGY II, LLC $8.2 M REED-MCDONALD 152 CITATION OIL & GAS CORP. $8.2 M CHALK -A- SWEET CRUDE OPERATING LLC $8.2 M PHILLIPS, H. APACHE CORPORATION $7.8 M M. M. EDWARDS SWEET CRUDE OPERATING LLC $7.7 M CLAY, H. R. WASH, ROBERT C. INC. $7.6 M REED -A- CITATION OIL & GAS CORP. $7.5 M CHALK ESTATE CITATION OIL & GAS CORP. $7.3 M HYMAN-CHALK CITATION OIL & GAS CORP. $7.1 M DOUTHIT, E. W. -B- GRAYROCK ENERGY II, LLC $7.0 M HALL SWEET CRUDE OPERATING LLC $6.8 M CHALK GTG OPERATING, LLC $6.5 M CHALK, G. O. CITATION OIL & GAS CORP. $6.4 M CLAY, H. R.-A- LANDMARK IP, LLC $6.3 M BATJER, PATTI -C- GRAYROCK ENERGY II, LLC $6.2 M DOUTHIT, E. W. -C- DE GRAYROCK ENERGY II, LLC $6.2 M CHALK-DUNCAN CONOCOPHILLIPS COMPANY $6.0 M CHALK -A- GRAYROCK ENERGY II, LLC $6.0 M HOOKS MOSS PETROLEUM COMPANY $5.9 M DOUTHIT, E. W. -B- DE GRAYROCK ENERGY II, LLC $5.3 M CHALK, OTIS SAHARA OPERATING COMPANY $5.0 M CHALK, OTIS /EO/ GRAYROCK ENERGY II, LLC $4.9 M SOUTHLAND EXTEX OPERATING COMPANY $4.3 M SETTLES, W. R. -A- WASH, ROBERT C. INC. $4.2 M CHALK, MARY EXTEX OPERATING COMPANY $4.2 M REED -B- CITATION OIL & GAS CORP. $4.1 M COLE EXTEX OPERATING COMPANY $4.1 M DOUTHIT UNIT GRAYROCK ENERGY II, LLC $3.8 M HOOKS RCW OIL, LLC $3.7 M CITIES-REED GRAYROCK ENERGY II, LLC $3.5 M REED "D-142" GRAYROCK ENERGY II, LLC $3.3 M DOUTHIT RCW OIL, LLC $3.3 M SETTLES WASH, ROBERT C. INC. $3.2 M ROBERTS, DORA, -E- WASH, ROBERT C. INC. $3.1 M KLOH, A. EXTEX OPERATING COMPANY $3.0 M DOUTHIT, E. W. -N- GRAYROCK ENERGY II, LLC $2.8 M REED -A- GRAYROCK ENERGY II, LLC $2.7 M COOPER SWEET CRUDE OPERATING LLC $2.7 M CLAY, H. R. -A- WASH, ROBERT C. INC. $2.6 M ST. LOUIE SAHARA OPERATING COMPANY $2.6 M DOUTHIT, E. W. -A- DE GRAYROCK ENERGY II, LLC $2.5 M CHALK -B- DUNCAN CONOCOPHILLIPS COMPANY $2.4 M EDWARDS -C- SWEET CRUDE OPERATING LLC $2.3 M SOUTHLAND "A" EXTEX OPERATING COMPANY $2.3 M SETTLES -A-&-B- BASA RESOURCES, INC. $2.3 M BOWEN, JOHN EXTEX OPERATING COMPANY $2.2 M STEWART YATES SAND UNIT WASH, ROBERT C. INC. $2.1 M BATJER, PATTI GRAYROCK ENERGY II, LLC $2.1 M CHALK, OTIS KEELEY OIL, L.L.C. $2.0 M EASON, S. T.-A- CITATION OIL & GAS CORP. $2.0 M SOUTHLAND -B- EXTEX OPERATING COMPANY $1.8 M ROBERTS, DORA YATES WATERFLOOD APACHE CORPORATION $1.8 M TURNER, SAM SWEET CRUDE OPERATING LLC $1.8 M BAKER SWEET CRUDE OPERATING LLC $1.7 M CHALK "A" EXTEX OPERATING COMPANY $1.7 M ROB BASA RESOURCES, INC. $1.7 M STEWART, G. C. RCW OIL, LLC $1.7 M OTIS, JOHN EXTEX OPERATING COMPANY $1.6 M ABRAMS APACHE CORPORATION $1.6 M HOOKS, A. J. A. BOYD & MCWILLIAMS ENERGY GROUP $1.6 M REED-MCDONALD 142 CITATION OIL & GAS CORP. $1.5 M DORIS CHALK -A- KEELEY OIL, L.L.C. $1.5 M COLE, DORIS EXTEX OPERATING COMPANY $1.5 M CHALK SAHARA OPERATING COMPANY $1.5 M OTIS, JOHN -A- EXTEX OPERATING COMPANY $1.5 M GILBREATH, S. APACHE CORPORATION $1.4 M COLE, DORIS "A" EXTEX OPERATING COMPANY $1.4 M CLAY, H. R. -A- ROBERTSON RESOURCES, INC. $1.4 M DORIS CHALK -C- KEELEY OIL, L.L.C. $1.3 M STEWART, G. C. 14START LLC $1.3 M DOUTHIT, E. W. -M- OAK PRAIRIE OPERATIONS, LLC $1.3 M JOHN B. BOWEN, JR. "B" SWEET CRUDE OPERATING LLC $1.3 M JOHN B. BOWEN, JR. "A" SWEET CRUDE OPERATING LLC $1.3 M WASH-DOUTHIT "D" WASH, ROBERT C. INC. $1.2 M SETTLES, W.R. -A- TT WASH, ROBERT C. INC. $1.2 M SETTLES -B- BASA RESOURCES, INC. $1.2 M CLAY, H. R. -B- ROBERTSON RESOURCES, INC. $1.2 M ROBERTS -C- DOUBLE BARREL OIL LLC $1.2 M SETTLES WEST RCW OIL, LLC $1.2 M CLAY, H. R. -B- WASH, ROBERT C. INC. $1.1 M TURNER, SAM GREENSTONE ENERGY, LLC $1.0 M CLAY, H.R.-G- LANDMARK IP, LLC $981 k REED "C" GRAYROCK ENERGY II, LLC $976 k HOOKS, A. J. BOYD & MCWILLIAMS ENERGY GROUP $897 k EDWARDS GREENSTONE ENERGY, LLC $891 k SETTLES, W. R.-C- CONOCOPHILLIPS COMPANY $886 k DOUTHIT, E. W., ETUX WASH, ROBERT C. INC. $854 k CHALK, MARY -C- EXTEX OPERATING COMPANY $834 k SETTLES 'C' CITIES CITATION OIL & GAS CORP. $833 k CLAY, H. R.-MCNALLEN LANDMARK IP, LLC $806 k HOOKS GTG OPERATING, LLC $787 k JOHN OTIS -B- EXTEX OPERATING COMPANY $735 k SETTLES, W. R.-B- CONOCOPHILLIPS COMPANY $653 k BATTJER, PATTI WASH, ROBERT C. INC. $647 k CLAY, H. R. EAST WASH, ROBERT C. INC. $621 k SCOTT, JOHN SWEET CRUDE OPERATING LLC $617 k PEERLESS-CHALK SAHARA OPERATING COMPANY $608 k CLAY, H. R. -C- WASH, ROBERT C. INC. $603 k EDWARDS, W. P. GREENSTONE ENERGY, LLC $603 k STEWART, G.C. "A" 14START LLC $584 k HYMAN, SARAH -C- STERLING OIL AND GAS LLC $578 k CHALK, MARY -D- EXTEX OPERATING COMPANY $518 k PHILLIPS, H. O. GREENSTONE ENERGY, LLC $498 k STEWART WASH, ROBERT C. INC. $485 k KELLY-ROBERTS CITATION OIL & GAS CORP. $455 k CHALK, MARY -G- EXTEX OPERATING COMPANY $452 k ROBERTS, DORA -A-&-B- APV MCCAMEY LLC $432 k HYMAN, SARAH STERLING OIL AND GAS LLC $407 k CHALK, MARY, -BE- EXTEX OPERATING COMPANY $389 k DORIS CHALK -B- KEELEY OIL, L.L.C. $381 k DOUTHIT -A- MWJ WASH, ROBERT C. INC. $374 k MM EDWARDS BLACK NEW HEIGHT ENERGY, LLC $363 k DOUTHIT "115" ROVER PETROLEUM OPERATING, LLC $362 k STEWART, G. C. -B- 14START LLC $340 k ROBERTS, DORA -A- APV MCCAMEY LLC $334 k CLAY. H.R.-B-AMOCO LANDMARK IP, LLC $332 k CLAY, H. R. -C- LANDMARK IP, LLC $330 k RUMSEY, ABRAMS & FRAZIER LEGACY RESERVES OPERATING LP $294 k TEX-HAN DOUTHIT/SAN ANDRES/ P4 OPERATING, LLC $254 k MAGNOLIA-ROBERTS APV MCCAMEY LLC $250 k DOUTHIT, MARY E. WASH, ROBERT C. INC. $247 k BOWEN, ANNA STERLING OIL AND GAS LLC $232 k HYMAN -E- STERLING OIL AND GAS LLC $232 k LEE GREENSTONE ENERGY, LLC $229 k CLAY, H. R.-B- LANDMARK IP, LLC $225 k ROBERTS, DORA -B- APV MCCAMEY LLC $222 k FT. WORTH NATL. BANK APV MCCAMEY LLC $185 k ANGUISH, E. W. VISION OIL AND GAS LLC $184 k DOUTHIT G SOJOURNER DRILLING CORPORATION $179 k ROBERTS, DORA GOLDEN SPECIALTIES OIL & GAS $167 k CLAY, H. R. O'RYAN OIL AND GAS $150 k MM EDWARDS BLACK -A- NEW HEIGHT ENERGY, LLC $148 k ROBERTS, DORA -E- APV MCCAMEY LLC $147 k CLAY, H. R., -B- O'RYAN OIL AND GAS $130 k COLLINS B. B. & C. $126 k COLE, DORIS "B" EXTEX OPERATING COMPANY $119 k TEX-HAN DOUTHIT P4 OPERATING, LLC $111 k HYMAN -H- STERLING OIL AND GAS LLC $108 k BOWEN, ANNA B. STERLING OIL AND GAS LLC $93 k CLAY, H. R., -A- O'RYAN OIL AND GAS $90 k HYMAN -G- STERLING OIL AND GAS LLC $82 k ROBERTS, DORA -B-(SOUTHLAND) APV MCCAMEY LLC $80 k CLAY, H.R. LANDMARK IP, LLC $66 k ROBERTS, DORA -C- GOLDEN SPECIALTIES OIL & GAS $66 k SETTLES, W.R. -B- TT WASH, ROBERT C. INC. $64 k HYMAN -I- STERLING OIL AND GAS LLC $58 k NIEMEYER GALLO PETROLEUM, LLC $57 k SPRAGUE -A- APV MCCAMEY LLC $48 k DOUTHIT -A- UNIT WASH, ROBERT C. INC. $45 k DOUTHITT GOLDEN SPECIALTIES OIL & GAS $35 k HYMAN -A- STERLING OIL AND GAS LLC $32 k PHILLIPS, HART BASA RESOURCES, INC. $32 k HYMAN -C- STERLING OIL AND GAS LLC $29 k
Field number 42971200 , from the Railroad Commission's field register. The register's own index resolves 231 leases and 2,805 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.