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:

19 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:

2,297,211

0.59%

3,126,201

0.80%

(2)

Cash-settled derivatives:

and/or controlled:

2,599,923

0.66%

1,920,513

0.49%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,897,134

1.25%

5,046,714

1.29%

(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

220,288

1.2757 GBP

USD 0.10 ordinary

Purchase

85,167

1.2502 GBP

USD 0.10 ordinary

Purchase

60,857

1.2569 GBP

USD 0.10 ordinary

Purchase

47,670

1.2600 GBP

USD 0.10 ordinary

Purchase

43,962

1.2630 GBP

USD 0.10 ordinary

Purchase

26,740

1.2547 GBP

USD 0.10 ordinary

Purchase

26,000

1.2715 GBP

USD 0.10 ordinary

Purchase

21,354

1.2603 GBP

USD 0.10 ordinary

Purchase

19,784

1.2610 GBP

USD 0.10 ordinary

Purchase

17,020

1.2481 GBP

USD 0.10 ordinary

Purchase

16,523

1.2472 GBP

USD 0.10 ordinary

Purchase

10,503

1.2672 GBP

USD 0.10 ordinary

Purchase

10,156

1.2716 GBP

USD 0.10 ordinary

Purchase

6,263

1.2646 GBP

USD 0.10 ordinary

Purchase

3,836

1.2597 GBP

USD 0.10 ordinary

Purchase

2,426

1.2560 GBP

USD 0.10 ordinary

Purchase

1,400

1.2759 GBP

USD 0.10 ordinary

Purchase

818

1.2738 GBP

USD 0.10 ordinary

Purchase

632

1.2830 GBP

USD 0.10 ordinary

Purchase

603

1.2700 GBP

USD 0.10 ordinary

Purchase

573

1.2420 GBP

USD 0.10 ordinary

Purchase

554

1.2690 GBP

USD 0.10 ordinary

Purchase

270

1.2720 GBP

USD 0.10 ordinary

Purchase

268

1.2710 GBP

USD 0.10 ordinary

Purchase

247

1.2623 GBP

USD 0.10 ordinary

Sale

202,501

1.2618 GBP

USD 0.10 ordinary

Sale

126,481

1.2662 GBP

USD 0.10 ordinary

Sale

66,998

1.2490 GBP

USD 0.10 ordinary

Sale

66,835

1.2658 GBP

USD 0.10 ordinary

Sale

52,143

1.2575 GBP

USD 0.10 ordinary

Sale

50,000

1.2494 GBP

USD 0.10 ordinary

Sale

47,670

1.2600 GBP

USD 0.10 ordinary

Sale

44,198

1.2573 GBP

USD 0.10 ordinary

Sale

31,034

1.2605 GBP

USD 0.10 ordinary

Sale

23,067

1.2645 GBP

USD 0.10 ordinary

Sale

21,612

1.2630 GBP

USD 0.10 ordinary

Sale

21,210

1.2615 GBP

USD 0.10 ordinary

Sale

19,039

1.2678 GBP

USD 0.10 ordinary

Sale

15,700

1.2677 GBP

USD 0.10 ordinary

Sale

13,431

1.2626 GBP

USD 0.10 ordinary

Sale

12,864

1.2629 GBP

USD 0.10 ordinary

Sale

12,781

1.2493 GBP

USD 0.10 ordinary

Sale

11,699

1.2521 GBP

USD 0.10 ordinary

Sale

8,424

1.2502 GBP

USD 0.10 ordinary

Sale

6,915

1.2496 GBP

USD 0.10 ordinary

Sale

4,424

1.2650 GBP

USD 0.10 ordinary

Sale

3,545

1.2541 GBP

USD 0.10 ordinary

Sale

2,400

1.2532 GBP

USD 0.10 ordinary

Sale

2,143

1.2555 GBP

USD 0.10 ordinary

Sale

2,131

1.2621 GBP

USD 0.10 ordinary

Sale

1,836

1.2410 GBP

USD 0.10 ordinary

Sale

1,695

1.2400 GBP

USD 0.10 ordinary

Sale

573

1.2420 GBP

USD 0.10 ordinary

Sale

538

1.2295 GBP

USD 0.10 ordinary

Sale

316

1.2690 GBP

USD 0.10 ordinary

Sale

270

1.2720 GBP

USD 0.10 ordinary

Sale

268

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

8,870

1.2658 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,695

1.2400 GBP

USD 0.10 ordinary

SWAP

Increasing Long

12,781

1.2493 GBP

USD 0.10 ordinary

SWAP

Increasing Long

11,699

1.2521 GBP

USD 0.10 ordinary

SWAP

Increasing Long

52,143

1.2575 GBP

USD 0.10 ordinary

SWAP

Increasing Long

2,260

1.2599 GBP

USD 0.10 ordinary

SWAP

Increasing Long

19,039

1.2607 GBP

USD 0.10 ordinary

SWAP

Increasing Long

12,864

1.2629 GBP

USD 0.10 ordinary

SWAP

Increasing Long

2,471

1.2630 GBP

USD 0.10 ordinary

SWAP

Increasing Long

23,067

1.2645 GBP

USD 0.10 ordinary

SWAP

Increasing Long

24,127

1.2649 GBP

USD 0.10 ordinary

SWAP

Increasing Long

66,835

1.2658 GBP

USD 0.10 ordinary

SWAP

Increasing Long

16,614

1.2677 GBP

USD 0.10 ordinary

SWAP

Increasing Long

51,407

1.2706 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

7,567

1.2358 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

600

1.2410 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

426

1.2560 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,278

1.2606 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

247

1.2624 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

25,060

1.2630 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

368

1.2659 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

10,503

1.2672 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

5,118

1.2710 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

5,038

1.2722 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

210

1.2731 GBP

USD 0.10 ordinary

CFD

Decreasing Short

2,515

1.2620 GBP

USD 0.10 ordinary

CFD

Decreasing Short

45,142

1.2630 GBP

USD 0.10 ordinary

CFD

Decreasing Short

3,050

1.2694 GBP

USD 0.10 ordinary

CFD

Decreasing Short

2,599

1.2700 GBP

USD 0.10 ordinary

CFD

Increasing Short

47,670

1.2600 GBP

USD 0.10 ordinary

CFD

Increasing Short

3,110

1.2601 GBP

USD 0.10 ordinary

CFD

Increasing Short

54,946

1.2630 GBP

USD 0.10 ordinary

CFD

Increasing Short

54

1.2729 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:

20 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213