July 26 (Reuters) - Britain's FTSE 100 index .FTSE is seen opening higher on Tuesday, with futures FFIc1 up 0.16%.

* STRIKE: The Transport Salaried Staffs' Association (TSSA), a British rail union, on Monday announced strike action across seven train operating companies that will take place on Aug. 18 and Aug. 20.

* SHELL: Shell Plc SHEL.L said on Monday it had made a final investment decision to develop the Jackdaw gas field in the British North Sea, which is expected to come online in the mid-2020s and could provide 6% of UK gas output.

* ENERGY: Britain's government must increase the level of support it is offering households to help pay soaring energy bills this winter and should lay out plans for a national scheme to insulate homes, a cross-party group of lawmakers said on Tuesday.

* OIL: Oil prices rose on Tuesday for a second day on increasing concerns about tightening European supply after Russia, a key oil and natural gas supplier to the region, cut gas supply through a major pipeline.

* GOLD: Gold prices rose on Tuesday on the back of a weaker dollar, but were stuck in a tight range as investors refrained from taking big bets ahead a possible aggressive U.S. interest rate hike.

* Britain's FTSE 100 rose on Monday, supported by banks and commodity stocks in a choppy session, with data showing Britain's industrial output slowed but tentative signs of price pressures coming off their peak.

* UK CORPORATE DIARY:

Mitie Group

MTO.L

Trading update

Compass Group

CPG.L

Trading update

Unilever

ULVR.L

HY and Q2 results

Drax

DRX.L

HY results

Reach Plc

RCH.L

HY results

Sabre Insurance

SBRE.L

HY results

* For more on the factors affecting European stocks, please click on:

TODAY'S UK PAPERS

> Financial Times

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Reporting by Muhammed Husain in Bengaluru