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:

26 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:

1,893,589

0.48%

2,753,664

0.70%

(2)

Cash-settled derivatives:

and/or controlled:

2,339,837

0.60%

1,523,782

0.39%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,233,426

1.08%

4,277,446

1.09%

(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

52,369

1.3174 GBP

USD 0.10 ordinary

Purchase

42,000

1.3048 GBP

USD 0.10 ordinary

Purchase

41,080

1.3305 GBP

USD 0.10 ordinary

Purchase

31,687

1.3303 GBP

USD 0.10 ordinary

Purchase

23,288

1.3267 GBP

USD 0.10 ordinary

Purchase

20,548

1.2999 GBP

USD 0.10 ordinary

Purchase

9,947

1.3323 GBP

USD 0.10 ordinary

Purchase

9,306

1.3410 GBP

USD 0.10 ordinary

Purchase

9,157

1.3208 GBP

USD 0.10 ordinary

Purchase

7,570

1.3193 GBP

USD 0.10 ordinary

Purchase

7,002

1.2860 GBP

USD 0.10 ordinary

Purchase

6,462

1.3268 GBP

USD 0.10 ordinary

Purchase

6,065

1.2914 GBP

USD 0.10 ordinary

Purchase

5,059

1.3116 GBP

USD 0.10 ordinary

Purchase

4,228

1.3128 GBP

USD 0.10 ordinary

Purchase

3,357

1.3137 GBP

USD 0.10 ordinary

Purchase

2,895

1.3081 GBP

USD 0.10 ordinary

Purchase

2,866

1.3226 GBP

USD 0.10 ordinary

Purchase

2,110

1.3178 GBP

USD 0.10 ordinary

Purchase

1,469

1.3382 GBP

USD 0.10 ordinary

Purchase

1,281

1.3192 GBP

USD 0.10 ordinary

Purchase

1,052

1.3440 GBP

USD 0.10 ordinary

Purchase

938

1.3380 GBP

USD 0.10 ordinary

Purchase

629

1.3250 GBP

USD 0.10 ordinary

Purchase

614

1.2990 GBP

USD 0.10 ordinary

Purchase

567

1.2910 GBP

USD 0.10 ordinary

Purchase

524

1.3270 GBP

USD 0.10 ordinary

Purchase

200

1.3470 GBP

USD 0.10 ordinary

Sale

123,651

1.3410 GBP

USD 0.10 ordinary

Sale

55,197

1.3164 GBP

USD 0.10 ordinary

Sale

52,642

1.3298 GBP

USD 0.10 ordinary

Sale

33,208

1.3047 GBP

USD 0.10 ordinary

Sale

12,749

1.3313 GBP

USD 0.10 ordinary

Sale

9,034

1.3377 GBP

USD 0.10 ordinary

Sale

8,766

1.3301 GBP

USD 0.10 ordinary

Sale

5,595

1.3107 GBP

USD 0.10 ordinary

Sale

3,712

1.3096 GBP

USD 0.10 ordinary

Sale

3,543

1.3399 GBP

USD 0.10 ordinary

Sale

2,888

1.3029 GBP

USD 0.10 ordinary

Sale

2,254

1.3339 GBP

USD 0.10 ordinary

Sale

2,000

1.3040 GBP

USD 0.10 ordinary

Sale

2,000

1.3110 GBP

USD 0.10 ordinary

Sale

1,110

1.3213 GBP

USD 0.10 ordinary

Sale

938

1.3380 GBP

USD 0.10 ordinary

Sale

581

1.3130 GBP

USD 0.10 ordinary

Sale

5

1.3470 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

7,979

1.3232 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

2,338

1.3233 GBP

USD 0.10 ordinary

SWAP

Increasing Long

3,537

1.3149 GBP

USD 0.10 ordinary

SWAP

Increasing Long

2,176

1.3296 GBP

USD 0.10 ordinary

SWAP

Increasing Long

8,766

1.3301 GBP

USD 0.10 ordinary

SWAP

Increasing Long

49,105

1.3308 GBP

USD 0.10 ordinary

SWAP

Increasing Long

3,543

1.3399 GBP

USD 0.10 ordinary

SWAP

Increasing Long

11,979

1.3409 GBP

USD 0.10 ordinary

SWAP

Increasing Long

3,814

1.3410 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

348

1.2950 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

20,200

1.3000 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

187

1.3110 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

8,216

1.3118 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

2,700

1.3152 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

6,123

1.3232 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

31,687

1.3303 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

41,080

1.3305 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

100

1.3411 GBP

USD 0.10 ordinary

CFD

Decreasing Short

65

1.2740 GBP

USD 0.10 ordinary

CFD

Decreasing Short

303

1.3409 GBP

USD 0.10 ordinary

CFD

Opening Long

117,324

1.3410 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,271

1.3241 GBP

USD 0.10 ordinary

CFD

Decreasing Long

1,329

1.3250 GBP

USD 0.10 ordinary

CFD

Decreasing Long

47

1.3340 GBP

USD 0.10 ordinary

CFD

Decreasing Long

2,876

1.3350 GBP

USD 0.10 ordinary

CFD

Decreasing Long

12,009

1.3359 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:

27 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213