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:

07 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:

2,090,936

0.53%

3,288,559

0.84%

(2)

Cash-settled derivatives:

and/or controlled:

2,607,848

0.67%

1,658,856

0.42%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,698,784

1.20%

4,947,415

1.27%

(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

181,374

1.2687 GBP

USD 0.10 ordinary

Purchase

143,881

1.3060 GBP

USD 0.10 ordinary

Purchase

139,306

1.3007 GBP

USD 0.10 ordinary

Purchase

95,643

1.2779 GBP

USD 0.10 ordinary

Purchase

77,083

1.3054 GBP

USD 0.10 ordinary

Purchase

53,630

1.3041 GBP

USD 0.10 ordinary

Purchase

32,313

1.3066 GBP

USD 0.10 ordinary

Purchase

24,377

1.2709 GBP

USD 0.10 ordinary

Purchase

23,000

1.2918 GBP

USD 0.10 ordinary

Purchase

13,641

1.2839 GBP

USD 0.10 ordinary

Purchase

10,000

1.2975 GBP

USD 0.10 ordinary

Purchase

9,257

1.3186 GBP

USD 0.10 ordinary

Purchase

7,600

1.2814 GBP

USD 0.10 ordinary

Purchase

5,000

1.3000 GBP

USD 0.10 ordinary

Purchase

3,180

1.2594 GBP

USD 0.10 ordinary

Purchase

3,105

1.2980 GBP

USD 0.10 ordinary

Purchase

2,248

1.2753 GBP

USD 0.10 ordinary

Purchase

1,972

1.2840 GBP

USD 0.10 ordinary

Purchase

1,945

1.2909 GBP

USD 0.10 ordinary

Purchase

1,640

1.3039 GBP

USD 0.10 ordinary

Purchase

1,466

1.2580 GBP

USD 0.10 ordinary

Purchase

1,413

1.3200 GBP

USD 0.10 ordinary

Purchase

1,413

1.3199 GBP

USD 0.10 ordinary

Purchase

1,035

1.2970 GBP

USD 0.10 ordinary

Purchase

671

1.3010 GBP

USD 0.10 ordinary

Purchase

573

1.3160 GBP

USD 0.10 ordinary

Purchase

566

1.2780 GBP

USD 0.10 ordinary

Purchase

291

1.2080 GBP

USD 0.10 ordinary

Purchase

289

1.2100 GBP

USD 0.10 ordinary

Purchase

228

1.2925 GBP

USD 0.10 ordinary

Sale

183,124

1.2696 GBP

USD 0.10 ordinary

Sale

129,151

1.3002 GBP

USD 0.10 ordinary

Sale

121,496

1.3029 GBP

USD 0.10 ordinary

Sale

117,552

1.2634 GBP

USD 0.10 ordinary

Sale

84,019

1.3051 GBP

USD 0.10 ordinary

Sale

70,331

1.2761 GBP

USD 0.10 ordinary

Sale

66,939

1.3060 GBP

USD 0.10 ordinary

Sale

66,752

1.2973 GBP

USD 0.10 ordinary

Sale

56,580

1.3059 GBP

USD 0.10 ordinary

Sale

27,254

1.2935 GBP

USD 0.10 ordinary

Sale

27,050

1.2687 GBP

USD 0.10 ordinary

Sale

20,293

1.2764 GBP

USD 0.10 ordinary

Sale

19,989

1.2989 GBP

USD 0.10 ordinary

Sale

19,708

1.2549 GBP

USD 0.10 ordinary

Sale

17,850

1.2740 GBP

USD 0.10 ordinary

Sale

12,605

1.3013 GBP

USD 0.10 ordinary

Sale

7,000

1.2819 GBP

USD 0.10 ordinary

Sale

6,980

1.2790 GBP

USD 0.10 ordinary

Sale

6,250

1.3300 GBP

USD 0.10 ordinary

Sale

5,500

1.3140 GBP

USD 0.10 ordinary

Sale

4,297

1.3044 GBP

USD 0.10 ordinary

Sale

2,572

1.2868 GBP

USD 0.10 ordinary

Sale

1,413

1.3200 GBP

USD 0.10 ordinary

Sale

671

1.2010 GBP

USD 0.10 ordinary

Sale

574

1.2490 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

Opening Short

1,329

1.2600 GBP

USD 0.10 ordinary

SWAP

Opening Long

27,050

1.2687 GBP

USD 0.10 ordinary

SWAP

Increasing Long

12,550

1.2740 GBP

USD 0.10 ordinary

SWAP

Increasing Long

783

1.2741 GBP

USD 0.10 ordinary

SWAP

Increasing Long

70,331

1.2761 GBP

USD 0.10 ordinary

SWAP

Increasing Long

20,293

1.2764 GBP

USD 0.10 ordinary

SWAP

Increasing Long

2,572

1.2868 GBP

USD 0.10 ordinary

SWAP

Increasing Long

37,752

1.2873 GBP

USD 0.10 ordinary

SWAP

Increasing Long

8,385

1.2881 GBP

USD 0.10 ordinary

SWAP

Increasing Long

64,908

1.2973 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,844

1.2986 GBP

USD 0.10 ordinary

SWAP

Increasing Long

4,297

1.3044 GBP

USD 0.10 ordinary

SWAP

Increasing Long

56,580

1.3059 GBP

USD 0.10 ordinary

SWAP

Increasing Long

20,894

1.3060 GBP

USD 0.10 ordinary

SWAP

Increasing Long

4,599

1.3500 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

289

1.2100 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

11,750

1.2635 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

2,464

1.2682 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

5,784

1.2739 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

503

1.2838 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,960

1.2846 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,277

1.2847 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

5,000

1.3000 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

19,100

1.3060 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

9,257

1.3186 GBP

USD 0.10 ordinary

CFD

Opening Long

1,705

1.2670 GBP

USD 0.10 ordinary

CFD

Increasing Long

14,510

1.2764 GBP

USD 0.10 ordinary

CFD

Decreasing Long

639

1.3092 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:

10 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213