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:

31 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:

1,878,997

0.48%

2,871,467

0.73%

(2)

Cash-settled derivatives:

and/or controlled:

2,574,685

0.66%

1,500,709

0.38%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,453,682

1.14%

4,372,176

1.12%

(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

36,506

1.3369 GBP

USD 0.10 ordinary

Purchase

34,000

1.3439 GBP

USD 0.10 ordinary

Purchase

26,403

1.3408 GBP

USD 0.10 ordinary

Purchase

25,820

1.3385 GBP

USD 0.10 ordinary

Purchase

23,148

1.3422 GBP

USD 0.10 ordinary

Purchase

21,822

1.3424 GBP

USD 0.10 ordinary

Purchase

14,260

1.3400 GBP

USD 0.10 ordinary

Purchase

10,000

1.3458 GBP

USD 0.10 ordinary

Purchase

8,896

1.3548 GBP

USD 0.10 ordinary

Purchase

7,708

1.3372 GBP

USD 0.10 ordinary

Purchase

7,529

1.3380 GBP

USD 0.10 ordinary

Purchase

6,994

1.3415 GBP

USD 0.10 ordinary

Purchase

5,571

1.3383 GBP

USD 0.10 ordinary

Purchase

3,909

1.3410 GBP

USD 0.10 ordinary

Purchase

1,759

1.3442 GBP

USD 0.10 ordinary

Purchase

1,325

1.3435 GBP

USD 0.10 ordinary

Purchase

864

1.3360 GBP

USD 0.10 ordinary

Purchase

628

1.3340 GBP

USD 0.10 ordinary

Purchase

564

1.3680 GBP

USD 0.10 ordinary

Purchase

554

1.3490 GBP

USD 0.10 ordinary

Purchase

354

1.3500 GBP

USD 0.10 ordinary

Purchase

307

1.3630 GBP

USD 0.10 ordinary

Purchase

304

1.3660 GBP

USD 0.10 ordinary

Purchase

237

1.3510 GBP

USD 0.10 ordinary

Purchase

160

1.3600 GBP

USD 0.10 ordinary

Purchase

71

1.3560 GBP

USD 0.10 ordinary

Sale

54,838

1.3417 GBP

USD 0.10 ordinary

Sale

42,000

1.3380 GBP

USD 0.10 ordinary

Sale

32,159

1.3400 GBP

USD 0.10 ordinary

Sale

21,143

1.3433 GBP

USD 0.10 ordinary

Sale

18,387

1.3409 GBP

USD 0.10 ordinary

Sale

12,958

1.3410 GBP

USD 0.10 ordinary

Sale

8,896

1.3548 GBP

USD 0.10 ordinary

Sale

6,818

1.3447 GBP

USD 0.10 ordinary

Sale

6,039

1.3449 GBP

USD 0.10 ordinary

Sale

5,216

1.3374 GBP

USD 0.10 ordinary

Sale

4,210

1.3500 GBP

USD 0.10 ordinary

Sale

3,251

1.3364 GBP

USD 0.10 ordinary

Sale

1,739

1.3365 GBP

USD 0.10 ordinary

Sale

1,536

1.3486 GBP

USD 0.10 ordinary

Sale

1,025

1.3476 GBP

USD 0.10 ordinary

Sale

584

1.3386 GBP

USD 0.10 ordinary

Sale

554

1.3490 GBP

USD 0.10 ordinary

Sale

457

1.3419 GBP

USD 0.10 ordinary

Sale

424

1.3630 GBP

USD 0.10 ordinary

Sale

304

1.3660 GBP

USD 0.10 ordinary

Sale

237

1.3510 GBP

USD 0.10 ordinary

Sale

160

1.3600 GBP

USD 0.10 ordinary

Sale

71

1.3560 GBP

USD 0.10 ordinary

Sale

59

1.3700 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

9,395

1.3410 GBP

USD 0.10 ordinary

SWAP

Increasing Long

6,142

1.3400 GBP

USD 0.10 ordinary

SWAP

Increasing Long

45,212

1.3409 GBP

USD 0.10 ordinary

SWAP

Increasing Long

457

1.3420 GBP

USD 0.10 ordinary

SWAP

Increasing Long

9,626

1.3455 GBP

USD 0.10 ordinary

SWAP

Increasing Long

636

1.3628 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

25,820

1.3385 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

19,863

1.3405 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

9,931

1.3415 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

23,148

1.3422 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

68

1.3426 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

1,201

1.3461 GBP

USD 0.10 ordinary

CFD

Increasing Long

2,658

1.3426 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,411

1.3427 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:

01 Apr 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213