ConocoPhillips said rising LNG prices were a key boost to exploration and production profits in the fourth quarter.

The US supermajor reported adjusted E&P earnings of nearly $2.44 billion, up from $1.85 billion in the same quarter of 2010.

Crude prices also contributed to the increase.

Without adjustments for special items, however, E&P earnings slipped to $1.6 billion in the last quarter of 2011, from $1.67