LANG, JAMES "A"

Oil // district 3 // lease#11646

op: VINTAGE PETROLEUM, INC.

cum_oil

37k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

1996-10

-- production_history

cum_oil: 36,736 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

171 BBL/mo

Di (annual)

9.3%

b-factor

0.6

EUR

32,533 BBL

R-squared

0.745

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ASHLAND EXPLORATION, INC.18,7501977-09-26
EOF // multi-state drilling data platform // 2026