Yorktown Energy Partners XI

Date	Owner	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
13 Dec 23	Yorktown Energy Partners XI	Class B Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	12.343	2,886	35.62 k	1,079,022
12 Dec 23	Yorktown Energy Partners XI	Class B Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	12.7653	1,126	14.37 k	1,081,908
12 Dec 23	Yorktown Energy Partners XI	Class A Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	15.7519	6,298	99.21 k	4,835,676
11 Dec 23	Yorktown Energy Partners XI	Class A Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	16.4183	21,667	355.74 k	4,841,974
8 Dec 23	Yorktown Energy Partners XI	Class B Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	15.1367	1,126	17.04 k	1,083,034
8 Dec 23	Yorktown Energy Partners XI	Class A Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	17.7785	2,113	37.57 k	4,863,641
8 Dec 23	Yorktown Energy Partners XI	Class A Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	17.162	21,105	362.20 k	4,865,754
7 Dec 23	Yorktown Energy Partners XI	Class B Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	15.0799	1,126	16.98 k	1,084,160
7 Dec 23	Yorktown Energy Partners XI	Class A Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	17.3147	23,218	402.01 k	4,886,859
6 Dec 23	Yorktown Energy Partners XI	Class B Common Stock, par value $0.01 per share	Sell	Dispose S	No	No	16.1394	366	5.91 k	1,085,286

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.