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:

21 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:

1,884,488

0.48%

3,118,431

0.80%

(2)

Cash-settled derivatives:

and/or controlled:

2,637,186

0.67%

1,497,086

0.38%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,521,674

1.15%

4,615,517

1.18%

(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

192,699

1.2469 GBP

USD 0.10 ordinary

Purchase

120,302

1.2460 GBP

USD 0.10 ordinary

Purchase

107,600

1.2470 GBP

USD 0.10 ordinary

Purchase

38,240

1.2468 GBP

USD 0.10 ordinary

Purchase

34,922

1.2453 GBP

USD 0.10 ordinary

Purchase

30,398

1.2426 GBP

USD 0.10 ordinary

Purchase

22,113

1.2438 GBP

USD 0.10 ordinary

Purchase

13,136

1.2436 GBP

USD 0.10 ordinary

Purchase

7,828

1.2440 GBP

USD 0.10 ordinary

Purchase

7,501

1.2441 GBP

USD 0.10 ordinary

Purchase

2,447

1.2508 GBP

USD 0.10 ordinary

Purchase

2,129

1.2430 GBP

USD 0.10 ordinary

Purchase

2,063

1.2550 GBP

USD 0.10 ordinary

Purchase

1,647

1.2446 GBP

USD 0.10 ordinary

Purchase

1,408

1.2507 GBP

USD 0.10 ordinary

Purchase

1,325

1.2485 GBP

USD 0.10 ordinary

Purchase

1,265

1.2439 GBP

USD 0.10 ordinary

Purchase

1,022

1.2480 GBP

USD 0.10 ordinary

Purchase

729

1.2540 GBP

USD 0.10 ordinary

Purchase

579

1.2543 GBP

USD 0.10 ordinary

Purchase

390

1.2400 GBP

USD 0.10 ordinary

Purchase

309

1.2555 GBP

USD 0.10 ordinary

Purchase

285

1.2380 GBP

USD 0.10 ordinary

Purchase

211

1.2505 GBP

USD 0.10 ordinary

Purchase

150

1.2495 GBP

USD 0.10 ordinary

Purchase

148

1.2560 GBP

USD 0.10 ordinary

Purchase

146

1.2500 GBP

USD 0.10 ordinary

Purchase

144

1.2435 GBP

USD 0.10 ordinary

Sale

230,251

1.2470 GBP

USD 0.10 ordinary

Sale

118,667

1.2471 GBP

USD 0.10 ordinary

Sale

85,058

1.2466 GBP

USD 0.10 ordinary

Sale

54,429

1.2477 GBP

USD 0.10 ordinary

Sale

49,150

1.2469 GBP

USD 0.10 ordinary

Sale

20,000

1.2444 GBP

USD 0.10 ordinary

Sale

17,066

1.2467 GBP

USD 0.10 ordinary

Sale

11,285

1.2445 GBP

USD 0.10 ordinary

Sale

7,681

1.2438 GBP

USD 0.10 ordinary

Sale

6,537

1.2452 GBP

USD 0.10 ordinary

Sale

3,695

1.2458 GBP

USD 0.10 ordinary

Sale

2,031

1.2433 GBP

USD 0.10 ordinary

Sale

1,482

1.2430 GBP

USD 0.10 ordinary

Sale

1,351

1.2454 GBP

USD 0.10 ordinary

Sale

1,022

1.2480 GBP

USD 0.10 ordinary

Sale

777

1.2440 GBP

USD 0.10 ordinary

Sale

631

1.2485 GBP

USD 0.10 ordinary

Sale

519

1.2460 GBP

USD 0.10 ordinary

Sale

498

1.2536 GBP

USD 0.10 ordinary

Sale

309

1.2555 GBP

USD 0.10 ordinary

Sale

285

1.2380 GBP

USD 0.10 ordinary

Sale

150

1.2495 GBP

USD 0.10 ordinary

Sale

148

1.2560 GBP

USD 0.10 ordinary

Sale

146

1.2500 GBP

USD 0.10 ordinary

Sale

144

1.2435 GBP

USD 0.10 ordinary

Sale

34

1.2418 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

9,711

1.2472 GBP

USD 0.10 ordinary

SWAP

Increasing Long

200

1.2437 GBP

USD 0.10 ordinary

SWAP

Increasing Long

12,626

1.2449 GBP

USD 0.10 ordinary

SWAP

Increasing Long

30,617

1.2468 GBP

USD 0.10 ordinary

SWAP

Increasing Long

49,150

1.2469 GBP

USD 0.10 ordinary

SWAP

Increasing Long

19,930

1.2470 GBP

USD 0.10 ordinary

SWAP

Increasing Long

1,500

1.2488 GBP

USD 0.10 ordinary

SWAP

Increasing Long

4,440

1.2519 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

390

1.2400 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

328

1.2430 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

13,136

1.2436 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

22,113

1.2438 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

7,501

1.2441 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

8,442

1.2470 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

580

1.2488 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,489

1.2529 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

50

1.2600 GBP

USD 0.10 ordinary

CFD

Increasing Long

23,975

1.2478 GBP

USD 0.10 ordinary

CFD

Increasing Long

100

1.2529 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,919

1.2459 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:

24 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213