In case I was unclear, that 7.7382 pence per share relates to the Q4 dividend payable 29 March 2019.
You were quite rightly referring to the earlier increase in the dollar amount wef Q2. The four interim dividends for 2018 (also 2018-2019 for UK tax purposes) in sterling terms being:
Q1 - 7.4435 pence per share (10.00 cents) payable 22 June 2018
Q2 - 7.9296 pence per share (10.25 cents) payable 21 September 2018
Q3 - 8.0251 pence per share (10.25 cents) payable 21 December 2018
Q4 - 7.7382 pence per share (10.25 cents) payable 29 March 2019
Total
31.1364 pence
The exchange rate movements and the 2.5% increase in the Q2-Q4 dividends, result in the total sterling dividends being some 3.8% greater than calendar 2017 (where I believe the dividends totalled
29.9902 pence if
https://www.bp.com/content/dam/bp/busin ... olders.pdf and my calculator is accurate).
The 2009 sterling dividends totalled
35.278 pence. Then the dividends were not paid for Q1-Q3 2010, for reasons we all know too well.