BLACK STONE MINERALS

Oil // district 4 // lease#13883

op: TRAP ROCK OIL, LTD.

cum_oil

1k BBL

cum_gas

0 MCF

wells

1

production

2012-09 — 2026-03

peak_month

2013-12

-- production_history

cum_oil: 1,005 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

192 BBL/mo

Di (annual)

373.4%

b-factor

0.2

EUR

767 BBL

R-squared

0.797

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1YATES ENERGY CO.65,2342013-10-31
EOF // data source: Texas Railroad Commission // 2026