Block listing Interim Review

Name of applicant:

Tullow Oil plc

Name of scheme:

1) Tullow Oil 2010 Share Option Scheme ('2010 Scheme')

2) Tullow Oil Employee Share Award Plan ('ESAP')

3) Tullow Oil Tullow Incentive Plan ('TIP')

Period of return:

From:

28 November 2022

To:

12 May 2023

Balance of unallotted securities under scheme(s) from previous return:

1) 494,085 - 2010 Scheme

2) 8,899,588 - ESAP

3) 8,420,227 - TIP

Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

1) 0

2) 0

3) 0

Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):

1) 0

2) 3,432,902

3) 4,672,310

Equals:  Balance under scheme(s) not yet issued/allotted at end of period:

1) 494,085

3) 5,466,686

4) 3,747,917

Name of contact:

Adam Holland

Telephone number of contact:

+44 (0)20 3249 9000