CHALK, G. O.

Oil // district 10 // lease#41207

op: CONOCOPHILLIPS COMPANY

cum_oil

90k BBL

cum_gas

0 MCF

wells

12

production

2011-12 — 2026-03

peak_month

2019-02

-- production_history

cum_oil: 89,656 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,141 BBL/mo

Di (annual)

87.7%

b-factor

2.0

EUR

131,392 BBL

R-squared

0.497

type

hyperbolic

-- wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
27CITATION OIL & GAS CORP.14,3002018-08-24
24CONOCOPHILLIPS COMPANY23,2002009-06-29
26CONOCO INC.23,2001984-05-22
25CONOCO INC.13,2001983-05-06
25WCONOCO INC.13,2001983-05-06
22CONOCO INC.23,1001980-07-16
1242-227-00503--------
13 L42-227-10051--------
14 L42-227-10052--------
15 L42-227-10053--------
1942-227-30095--------
20D42-227-30294--------
EOF // data source: Texas Railroad Commission // 2026