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:

11 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:

2,401,503

0.61%

3,273,571

0.84%

(2)

Cash-settled derivatives:

and/or controlled:

2,637,607

0.67%

1,962,749

0.50%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

5,039,110

1.29%

5,236,320

1.34%

(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

33,286

1.2711 GBP

USD 0.10 ordinary

Purchase

28,047

1.2691 GBP

USD 0.10 ordinary

Purchase

24,347

1.2690 GBP

USD 0.10 ordinary

Purchase

14,042

1.2869 GBP

USD 0.10 ordinary

Purchase

11,100

1.2796 GBP

USD 0.10 ordinary

Purchase

10,076

1.2782 GBP

USD 0.10 ordinary

Purchase

9,231

1.2801 GBP

USD 0.10 ordinary

Purchase

7,975

1.2739 GBP

USD 0.10 ordinary

Purchase

5,548

1.2746 GBP

USD 0.10 ordinary

Purchase

5,527

1.2817 GBP

USD 0.10 ordinary

Purchase

4,853

1.2745 GBP

USD 0.10 ordinary

Purchase

3,074

1.2779 GBP

USD 0.10 ordinary

Purchase

2,903

1.2737 GBP

USD 0.10 ordinary

Purchase

2,000

1.2720 GBP

USD 0.10 ordinary

Purchase

1,095

1.2780 GBP

USD 0.10 ordinary

Purchase

1,000

1.2760 GBP

USD 0.10 ordinary

Purchase

573

1.2730 GBP

USD 0.10 ordinary

Purchase

471

1.2710 GBP

USD 0.10 ordinary

Purchase

235

1.2740 GBP

USD 0.10 ordinary

Purchase

220

1.2802 GBP

USD 0.10 ordinary

Sale

52,164

1.2698 GBP

USD 0.10 ordinary

Sale

31,701

1.2689 GBP

USD 0.10 ordinary

Sale

28,962

1.2690 GBP

USD 0.10 ordinary

Sale

27,412

1.2725 GBP

USD 0.10 ordinary

Sale

22,840

1.2798 GBP

USD 0.10 ordinary

Sale

18,613

1.2802 GBP

USD 0.10 ordinary

Sale

10,709

1.2741 GBP

USD 0.10 ordinary

Sale

10,174

1.2733 GBP

USD 0.10 ordinary

Sale

6,088

1.2804 GBP

USD 0.10 ordinary

Sale

2,948

1.2819 GBP

USD 0.10 ordinary

Sale

2,063

1.2896 GBP

USD 0.10 ordinary

Sale

1,755

1.2722 GBP

USD 0.10 ordinary

Sale

1,554

1.2714 GBP

USD 0.10 ordinary

Sale

1,524

1.2720 GBP

USD 0.10 ordinary

Sale

937

1.2799 GBP

USD 0.10 ordinary

Sale

311

1.2680 GBP

USD 0.10 ordinary

Sale

233

1.2710 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

8,622

1.2759 GBP

USD 0.10 ordinary

SWAP

Increasing Long

44,078

1.2689 GBP

USD 0.10 ordinary

SWAP

Increasing Long

14,366

1.2690 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,554

1.2714 GBP

USD 0.10 ordinary

SWAP

Increasing Long

179

1.2720 GBP

USD 0.10 ordinary

SWAP

Increasing Long

10,709

1.2741 GBP

USD 0.10 ordinary

SWAP

Increasing Long

4,610

1.2755 GBP

USD 0.10 ordinary

SWAP

Increasing Long

15,794

1.2791 GBP

USD 0.10 ordinary

SWAP

Increasing Long

7,046

1.2812 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

12,530

1.2690 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

3,797

1.2736 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

3,113

1.2787 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

9,231

1.2801 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,368

1.2802 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

712

1.2856 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,086

1.2857 GBP

USD 0.10 ordinary

CFD

Decreasing Short

24,635

1.2690 GBP

USD 0.10 ordinary

CFD

Decreasing Short

3,277

1.2720 GBP

USD 0.10 ordinary

CFD

Decreasing Short

14,250

1.2743 GBP

USD 0.10 ordinary

CFD

Increasing Short

12,910

1.2730 GBP

USD 0.10 ordinary

CFD

Increasing Short

991

1.2739 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:

12 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213