CHALK, MARY, -BE-

Oil // district 10 // lease#16930

op: MARATHON OIL COMPANY

cum_oil

27k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2012-08

peak_month

1993-10

-- production_history

cum_oil: 27,206 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

262 BBL/mo

Di (annual)

14.3%

b-factor

0.3

EUR

29,189 BBL

R-squared

0.786

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5GUTHRIE, A. K. OPERATING CO.11,5001977-09-15
142-227-04133--------
242-227-04140--------
342-227-04144--------
4 D42-227-04136--------
EOF // multi-state drilling data platform // 2026