CHALK, G. O. -G-

Oil // district 10 // lease#19031

op: CONOCOPHILLIPS COMPANY

cum_oil

423k BBL

cum_gas

0 MCF

wells

20

production

1993-01 — 2012-04

peak_month

1993-10

-- production_history

cum_oil: 422,535 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,888 BBL/mo

Di (annual)

8.9%

b-factor

1.0

EUR

661,561 BBL

R-squared

0.767

type

hyperbolic

-- wells (20)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
32CITATION OIL & GAS CORP.14,3002018-11-07
46MOBIL PRODUCING TX. & N.M. INC.23,3001993-08-09
49MOBIL PRODUCING TX. & N.M. INC.13,2001987-02-13
39WMOBIL PRODUCING TX. & N.M. INC.13,2001985-10-31
40WMOBIL PRODUCING TX. & N.M. INC.13,2001985-10-31
36MOBIL PRODUCING TX. & N.M. INC.13,1001983-06-21
38MOBIL PRODUCING TX. & N.M. INC.13,1001983-06-21
37MOBIL PRODUCING TX. & N.M. INC.13,1001983-05-12
35MOBIL PRODUCING TX. & N.M. INC.13,1001983-02-15
34MOBIL PRODUCING TX. & N.M. INC.13,1001982-12-23
33MOBIL PRODUCING TX. & N.M. INC.13,1001982-12-17
1042-227-02135--------
1142-227-02136--------
1442-227-02138--------
24W42-227-30222--------
25W42-227-30276--------
2942-227-30343--------
3142-227-30436--------
742-227-02031--------
942-227-02134--------
EOF // data source: Texas Railroad Commission // 2026