Operational and Financial Overview

ENSCOROWAN # Rigs Leading Provider of Ultra-Harsh and Modern Harsh Environment Jackups Ultra-Harsh & Modern Harsh Environment Jackups EnscoRowan¹ 7 9 16 Maersk 6 5 11 Global Jackup Utilization - Delivered Rigs Ultra-Harsh/ Modern Harsh 3,4 100% # of Rigs with 2H19 Availability 80% 10 60% 3 40% Jan 16 Jul 16 Jan 17 Jul 17 Jan 18 Jul 18 Jan 19 Noble 1 9 10 3 Borr 6 6 COSL Seadrill 2 2 4 KCA Deutag 2 2 3 ■ Ultra HE Modern HE4 Modern Benign5 Other6 Contract Status - Ultra-Harsh & Modern Harsh Environment Jackups 5 Rowan Mississippi Bob Palmer 0 0 0 ENSCO 120 ENSCO 121 Rowan Norway Rowan Stavanger Rowan Gorilla VII ENSCO 102 Rowan Gorilla V Rowan Gorilla VI Ralph Coffman ENSCO 122 Joe Douglas Rowan Viking ENSCO 101 ENSCO 123 ■Contracted 2019 2020 2021 Options Under Construction Available Source: IHS Markit RigPoint as of April 2019 1 Rowan jackup count excludes 7 rigs contributed to ARO Drilling and 2 rigs expected to be retired 2 Seadrill includes NADL and reflects 50% ownership of SeaMex, excludes newbuilds with no recourse to parent company 3 Includes jackups with the following rig designs: Gusto MSC CJ70, Le Tourneau Super Gorilla Class and KFELS N Class 4 Other jackups classified as harsh environment and North Sea capable < 20 years of age 5 Jackups not classified as harsh environment and North Sea capable < 20 years of age 6 All jackups > 20 years of age 19

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