Form 8.3 SERICA ENERGY PLC

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

SERICA ENERGY PLC

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

28 Mar 2025

(f)

In addition to the company in 1(c) above, is the discloser making

YES:

disclosures in respect of any other party to the offer?

ENQUEST PLC

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing(if any)

Class of relevant security:

USD 0.10 ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

1,854,144

0.47%

2,863,242

0.73%

(2)

Cash-settled derivatives:

and/or controlled:

2,584,938

0.66%

1,475,856

0.38%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,439,082

1.13%

4,339,098

1.11%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

USD 0.10 ordinary

Purchase

66,728

1.4056 GBP

USD 0.10 ordinary

Purchase

38,285

1.3847 GBP

USD 0.10 ordinary

Purchase

33,061

1.4082 GBP

USD 0.10 ordinary

Purchase

24,715

1.3902 GBP

USD 0.10 ordinary

Purchase

23,802

1.3931 GBP

USD 0.10 ordinary

Purchase

21,092

1.3971 GBP

USD 0.10 ordinary

Purchase

19,272

1.3914 GBP

USD 0.10 ordinary

Purchase

18,393

1.4076 GBP

USD 0.10 ordinary

Purchase

10,079

1.3800 GBP

USD 0.10 ordinary

Purchase

8,867

1.3889 GBP

USD 0.10 ordinary

Purchase

8,500

1.3943 GBP

USD 0.10 ordinary

Purchase

7,033

1.3950 GBP

USD 0.10 ordinary

Purchase

4,259

1.3992 GBP

USD 0.10 ordinary

Purchase

3,969

1.3989 GBP

USD 0.10 ordinary

Purchase

3,279

1.4100 GBP

USD 0.10 ordinary

Purchase

2,636

1.4008 GBP

USD 0.10 ordinary

Purchase

2,443

1.4049 GBP

USD 0.10 ordinary

Purchase

1,498

1.3840 GBP

USD 0.10 ordinary

Purchase

1,110

1.3938 GBP

USD 0.10 ordinary

Purchase

880

1.4260 GBP

USD 0.10 ordinary

Purchase

822

1.3907 GBP

USD 0.10 ordinary

Purchase

610

1.4140 GBP

USD 0.10 ordinary

Purchase

587

1.4155 GBP

USD 0.10 ordinary

Purchase

560

1.4240 GBP

USD 0.10 ordinary

Purchase

267

1.4120 GBP

USD 0.10 ordinary

Purchase

64

1.4170 GBP

USD 0.10 ordinary

Purchase

50

1.4210 GBP

USD 0.10 ordinary

Sale

108,165

1.4031 GBP

USD 0.10 ordinary

Sale

55,802

1.3800 GBP

USD 0.10 ordinary

Sale

35,706

1.3999 GBP

USD 0.10 ordinary

Sale

32,731

1.3870 GBP

USD 0.10 ordinary

Sale

30,760

1.4023 GBP

USD 0.10 ordinary

Sale

19,200

1.3932 GBP

USD 0.10 ordinary

Sale

13,647

1.3865 GBP

USD 0.10 ordinary

Sale

12,206

1.4075 GBP

USD 0.10 ordinary

Sale

12,000

1.3930 GBP

USD 0.10 ordinary

Sale

4,951

1.4100 GBP

USD 0.10 ordinary

Sale

3,794

1.4070 GBP

USD 0.10 ordinary

Sale

2,393

1.4090 GBP

USD 0.10 ordinary

Sale

1,088

1.4129 GBP

USD 0.10 ordinary

Sale

701

1.4160 GBP

USD 0.10 ordinary

Sale

427

1.4110 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

USD 0.10 ordinary

SWAP

Decreasing Long

9,368

1.3980 GBP

USD 0.10 ordinary

SWAP

Increasing Long

763

1.3800 GBP

USD 0.10 ordinary

SWAP

Increasing Long

605

1.3858 GBP

USD 0.10 ordinary

SWAP

Increasing Long

13,351

1.3910 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,560

1.3991 GBP

USD 0.10 ordinary

SWAP

Increasing Long

30,760

1.4023 GBP

USD 0.10 ordinary

SWAP

Increasing Long

94,814

1.4048 GBP

USD 0.10 ordinary

SWAP

Increasing Long

816

1.4122 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,088

1.4130 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,174

1.3800 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

19,272

1.3914 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

23,802

1.3931 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

215

1.4161 GBP

USD 0.10 ordinary

CFD

Increasing Long

8,092

1.3997 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,595

1.3983 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercising

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the person making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

31 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213