WHITEHEAD, G.

Oil // district 9 // lease#9681

op: WILLOWBEND INVESTMENTS, INC.

cum_oil

107k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

2006-07

-- production_history

cum_oil: 106,916 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,131 BBL/mo

Di (annual)

54.1%

b-factor

0.5

EUR

46,720 BBL

R-squared

0.944

type

hyperbolic

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4QUINTX EXPLORATION, INC.43,0202006-05-10
10QUINTX EXPLORATION, INC.21,7582006-04-04
85QUINTX EXPLORATION, INC.42,0502006-02-21
30QUINTX EXPLORATION, INC.23,0002003-09-24
3MARATHON OIL COMPANY43,0002001-03-05
81QUINTX EXPLORATION, INC.11,8001992-02-26
82QUINTX EXPLORATION, INC.11,8001992-02-20
78QUINTX EXPLORATION, INC.11,8001991-12-18
5HUSKY OIL COMPANY13,0001982-08-25
EOF // data source: Texas Railroad Commission // 2026