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:

25 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:

2,003,296

0.51%

2,837,768

0.72%

(2)

Cash-settled derivatives:

and/or controlled:

2,396,423

0.61%

1,633,490

0.42%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,399,719

1.12%

4,471,258

1.14%

(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

116,368

1.2614 GBP

USD 0.10 ordinary

Purchase

105,985

1.2693 GBP

USD 0.10 ordinary

Purchase

60,193

1.2753 GBP

USD 0.10 ordinary

Purchase

44,165

1.2803 GBP

USD 0.10 ordinary

Purchase

39,813

1.2746 GBP

USD 0.10 ordinary

Purchase

25,396

1.2700 GBP

USD 0.10 ordinary

Purchase

23,220

1.2703 GBP

USD 0.10 ordinary

Purchase

19,573

1.2710 GBP

USD 0.10 ordinary

Purchase

17,999

1.2684 GBP

USD 0.10 ordinary

Purchase

13,207

1.2687 GBP

USD 0.10 ordinary

Purchase

7,286

1.2704 GBP

USD 0.10 ordinary

Purchase

7,065

1.2724 GBP

USD 0.10 ordinary

Purchase

5,583

1.2751 GBP

USD 0.10 ordinary

Purchase

2,968

1.2742 GBP

USD 0.10 ordinary

Purchase

2,624

1.2743 GBP

USD 0.10 ordinary

Purchase

2,253

1.2738 GBP

USD 0.10 ordinary

Purchase

2,008

1.2769 GBP

USD 0.10 ordinary

Purchase

1,222

1.2800 GBP

USD 0.10 ordinary

Purchase

1,080

1.2539 GBP

USD 0.10 ordinary

Purchase

890

1.2556 GBP

USD 0.10 ordinary

Purchase

795

1.2745 GBP

USD 0.10 ordinary

Purchase

763

1.2810 GBP

USD 0.10 ordinary

Purchase

688

1.2870 GBP

USD 0.10 ordinary

Purchase

593

1.2850 GBP

USD 0.10 ordinary

Purchase

583

1.2777 GBP

USD 0.10 ordinary

Purchase

508

1.2630 GBP

USD 0.10 ordinary

Purchase

300

1.2610 GBP

USD 0.10 ordinary

Purchase

286

1.2780 GBP

USD 0.10 ordinary

Purchase

201

1.2689 GBP

USD 0.10 ordinary

Purchase

186

1.2500 GBP

USD 0.10 ordinary

Purchase

22

1.2485 GBP

USD 0.10 ordinary

Sale

118,607

1.2614 GBP

USD 0.10 ordinary

Sale

20,837

1.2736 GBP

USD 0.10 ordinary

Sale

16,663

1.2700 GBP

USD 0.10 ordinary

Sale

9,502

1.2715 GBP

USD 0.10 ordinary

Sale

5,000

1.2745 GBP

USD 0.10 ordinary

Sale

4,689

1.2782 GBP

USD 0.10 ordinary

Sale

3,042

1.2733 GBP

USD 0.10 ordinary

Sale

2,000

1.2740 GBP

USD 0.10 ordinary

Sale

1,000

1.2840 GBP

USD 0.10 ordinary

Sale

286

1.2780 GBP

USD 0.10 ordinary

Sale

274

1.2800 GBP

USD 0.10 ordinary

Sale

78

1.2670 GBP

USD 0.10 ordinary

Sale

23

1.2500 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

9,476

1.2739 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

764

1.2740 GBP

USD 0.10 ordinary

SWAP

Increasing Long

445

1.2602 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,476

1.2692 GBP

USD 0.10 ordinary

SWAP

Increasing Long

8,222

1.2699 GBP

USD 0.10 ordinary

SWAP

Increasing Long

4,240

1.2700 GBP

USD 0.10 ordinary

SWAP

Increasing Long

17,250

1.2740 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,000

1.2840 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

13,207

1.2687 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

46,343

1.2696 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

807

1.2700 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

19,573

1.2710 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

37,171

1.2720 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

39,813

1.2746 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

60,193

1.2753 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

487

1.2795 GBP

USD 0.10 ordinary

CFD

Increasing Long

982

1.2700 GBP

USD 0.10 ordinary

CFD

Increasing Long

193

1.2779 GBP

USD 0.10 ordinary

CFD

Increasing Long

527

1.2780 GBP

USD 0.10 ordinary

CFD

Increasing Long

83

1.2809 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,723

1.2573 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,754

1.2700 GBP

USD 0.10 ordinary

CFD

Decreasing Long

11,078

1.2730 GBP

USD 0.10 ordinary

CFD

Opening Short

69,350

1.2870 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:

26 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213