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:

27 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:

1,853,643

0.47%

2,832,031

0.72%

(2)

Cash-settled derivatives:

and/or controlled:

2,498,116

0.64%

1,476,457

0.38%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,351,759

1.11%

4,308,488

1.10%

(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

187,847

1.3810 GBP

USD 0.10 ordinary

Purchase

67,727

1.3734 GBP

USD 0.10 ordinary

Purchase

35,886

1.3649 GBP

USD 0.10 ordinary

Purchase

22,695

1.3674 GBP

USD 0.10 ordinary

Purchase

12,727

1.3530 GBP

USD 0.10 ordinary

Purchase

8,593

1.3557 GBP

USD 0.10 ordinary

Purchase

6,872

1.3688 GBP

USD 0.10 ordinary

Purchase

5,639

1.3576 GBP

USD 0.10 ordinary

Purchase

4,956

1.3632 GBP

USD 0.10 ordinary

Purchase

3,924

1.3619 GBP

USD 0.10 ordinary

Purchase

3,614

1.3718 GBP

USD 0.10 ordinary

Purchase

3,298

1.3750 GBP

USD 0.10 ordinary

Purchase

2,685

1.3670 GBP

USD 0.10 ordinary

Purchase

1,961

1.3722 GBP

USD 0.10 ordinary

Purchase

1,754

1.3710 GBP

USD 0.10 ordinary

Purchase

1,334

1.3380 GBP

USD 0.10 ordinary

Purchase

1,223

1.3600 GBP

USD 0.10 ordinary

Purchase

1,112

1.3469 GBP

USD 0.10 ordinary

Purchase

1,073

1.3785 GBP

USD 0.10 ordinary

Purchase

602

1.3720 GBP

USD 0.10 ordinary

Purchase

326

1.3450 GBP

USD 0.10 ordinary

Purchase

282

1.3430 GBP

USD 0.10 ordinary

Sale

116,299

1.3810 GBP

USD 0.10 ordinary

Sale

102,904

1.3618 GBP

USD 0.10 ordinary

Sale

101,288

1.3746 GBP

USD 0.10 ordinary

Sale

56,969

1.3717 GBP

USD 0.10 ordinary

Sale

23,270

1.3736 GBP

USD 0.10 ordinary

Sale

20,435

1.3704 GBP

USD 0.10 ordinary

Sale

19,523

1.3763 GBP

USD 0.10 ordinary

Sale

19,300

1.3685 GBP

USD 0.10 ordinary

Sale

11,224

1.3697 GBP

USD 0.10 ordinary

Sale

10,756

1.3775 GBP

USD 0.10 ordinary

Sale

9,177

1.3809 GBP

USD 0.10 ordinary

Sale

3,298

1.3750 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

6,183

1.3610 GBP

USD 0.10 ordinary

SWAP

Increasing Long

3,338

1.3400 GBP

USD 0.10 ordinary

SWAP

Increasing Long

24,503

1.3580 GBP

USD 0.10 ordinary

SWAP

Increasing Long

610

1.3618 GBP

USD 0.10 ordinary

SWAP

Increasing Long

78,401

1.3630 GBP

USD 0.10 ordinary

SWAP

Increasing Long

32,352

1.3657 GBP

USD 0.10 ordinary

SWAP

Increasing Long

19,300

1.3685 GBP

USD 0.10 ordinary

SWAP

Increasing Long

11,224

1.3697 GBP

USD 0.10 ordinary

SWAP

Increasing Long

20,435

1.3704 GBP

USD 0.10 ordinary

SWAP

Increasing Long

286

1.3741 GBP

USD 0.10 ordinary

SWAP

Increasing Long

10,756

1.3775 GBP

USD 0.10 ordinary

SWAP

Increasing Long

9,408

1.3809 GBP

USD 0.10 ordinary

SWAP

Increasing Long

17,738

1.3810 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

19

1.3000 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

4,549

1.3225 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

206

1.3751 GBP

USD 0.10 ordinary

SWAP

Decreasing Long

187

1.3760 GBP

USD 0.10 ordinary

CFD

Decreasing Long

692

1.3262 GBP

USD 0.10 ordinary

CFD

Decreasing Long

10,911

1.3559 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:

28 Mar 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213