Rule 2.10 Announcement

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF THAT JURISDICTION

3 September 2015

Offer by Royal Dutch Shell plc for BG Group plc

Disclosure of total BG Group plc shares in issue pursuant to Rule 2.10

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers (the "Code"), BG Group plc confirms that it has in issue outside treasury 3,415,737,411 ordinary shares of 10 pence each that are admitted to trading on the main market of the London Stock Exchange. The ISIN for BG Group plc's shares is GB0008762899.

BG Group plc has a sponsored Level 1 American Depositary Receipts ("ADR") programme. Each ADR represents one BG Group plc ordinary share. The ADRs trade in the over-the-counter market, OTCQX International Premier. The trading symbol for these securities is BRGYY and the ISIN is US0554342032.

The total number of shares attracting voting rights in BG Group plc is 3,415,737,411. This figure may be used by shareholders to determine the percentage of issued share capital they hold in BG Group plc.