CRAVENS -B-

Oil // district 9 // lease#6475

op: NORTHSTAR OPERATING COMPANY

cum_oil

95k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2019-06

peak_month

1997-06

-- production_history

cum_oil: 94,668 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,115 BBL/mo

Di (annual)

22.5%

b-factor

0.3

EUR

82,181 BBL

R-squared

0.768

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5LIMARK CORPORATION16,5151997-01-06
142-235-30418--------
242-235-30522--------
342-235-30528--------
442-235-30529--------
EOF // multi-state drilling data platform // 2026