Milford Haven Port, which handles around 20 per cent of the UK’s fuel requirements, reported a pre-tax profit of £8.1m on a turnover of £29.5m in 2011, up from £7.1m on a turnover of £27.8m in 2010.
A spokeman for the port said the results were partly attributed to 'increased fuel demand' last winter.
They added that results are expected to be less encouraging for the year ahead, due to a fall in the amount of gas being handled there, as well as the need to invest more into pension funds.
More top news
The heavy showers will ease during the first part of tonight, leaving a dry night with mist in places.
A 1950s pin-up girl from the Vale of Glamorgan has returned to the spot where she won the nation's hearts.
The band play the Liberty Stadium on Saturday night as part of their 'Everything Must Go' 20th anniversary tour.