JOINT FILERS’ SIGNATURES
R/C ENERGY IV DIRECT PARTNERSHIP, L.P. | ||||
By: Riverstone/Carlyle Energy Partners IV, L.P., its general partner | ||||
By: R/C ENERGY GP IV, LLC, its general partner | ||||
By: | /s/ Peter Haskopoulos | Date: November 7, 2019 | ||
Name: | Peter Haskopoulos | |||
Title: | Managing Director | |||
R/C IV LIBERTY HOLDINGS, L.P. | ||||
By: Riverstone/Carlyle Energy Partners IV, L.P., its general partner | ||||
By: R/C ENERGY GP IV, LLC, its general partner | ||||
By: | /s/ Peter Haskopoulos | Date: November 7, 2019 | ||
Name: | Peter Haskopoulos | |||
Title: | Managing Director | |||
R/C ENERGY GP IV, LLC | ||||
By: | /s/ Peter Haskopoulos | Date: November 7, 2019 | ||
Name: | Peter Haskopoulos | |||
Title: | Managing Director |