BLACKNALL, J. C.

Oil // district 4 // lease#12876

op: XOG OPERATING LLC

cum_oil

37k BBL

cum_gas

0 MCF

wells

1

production

1999-10 — 2026-03

peak_month

1999-11

-- production_history

cum_oil: 37,213 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,087 BBL/mo

Di (annual)

41.7%

b-factor

0.1

EUR

34,676 BBL

R-squared

0.795

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8TENNECO OIL CO.117,0151999-04-09
EOF // data source: Texas Railroad Commission // 2026