BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Sharesave Scheme
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 5,000,056 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 5,000,056 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Executive Share Option Scheme
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 2,913,916 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 2,913,916 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Share Incentive Plan
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 876,245 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 876,245 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Long Term Incentive Scheme
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 6,457,948 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 6,457,948 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Share Award Scheme
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 1,302,541 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 1,302,541 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica North American Employee Share Purchase Plan
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 152,596 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 152,596 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010

BLOCK LISTING SIX MONTHLY RETURN

Schedule 5

Date: 2 November 2015

Name of applicant:   Centrica plc
Name of scheme: Centrica Deferred and Matching Share Scheme
Period of return:   From: 01 May 2015   To:   31 October 2015
Balance of unallotted securities under scheme(s) from previous return: 1,035,903 ORDINARY 6 14/81p
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for): 0
Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G): 0
Equals: Balance under scheme(s) not yet issued/allotted at end of period: 1,035,903 ORDINARY 6 14/81p
Name of contact:   Matthew Madeley
Telephone number of contact: +44 (0)1753 494010