SOUTHLAND

Oil // district 10 // lease#30038

op: MARATHON OIL COMPANY

cum_oil

197k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2012-08

peak_month

1993-01

-- production_history

cum_oil: 197,396 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,816 BBL/mo

Di (annual)

11.2%

b-factor

0.4

EUR

269,106 BBL

R-squared

0.964

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4GUTHRIE, A. K. OPERATING CO.14,0001986-01-28
2GUTHRIE, A. K. OPERATING CO.14,0001985-09-20
3GUTHRIE, A. K. OPERATING CO.14,0001985-09-20
1GUTHRIE, A. K. OPERATING CO.14,0001985-06-18
EOF // data source: Texas Railroad Commission // 2026