0742 GMT - Shell delivered strong second-quarter numbers after building up investors' expectations ahead of the release, Jefferies analyst Mark Wilson writes. It is noteworthy that the British energy major's release didn't include the immediate guidance and distribution increase that Italy's Eni offered investors when it reported Wednesday, he adds. Shell holds the line on its $3 billion buyback, while Eni hiked its repurchase. Shares rise 1.6% to 3,376.5 pence.