BP CUTS NORTH SEA PROPANE PRICE, BUTANE UNCHANGED British Petroleum LP Gas International said it cut its North Sea LPG (Liquified Petroleum Gas) posted price for propane to 95 dlrs from 110 dlrs a tonne, effective June 1. The move follows a similar cut to 92 from 108 dlrs a tonne announced by Shell U.K. Ltd Friday, also fob North Sea terminals and effective June 1 until further notice. Both companies left their butane prices unchanged at 123 dlrs a tonne. A BP statement said its cut came "as a result of a price review occasioned by substantial changes in the LPG market." BP last lowered its posted propane price from 175 dlrs a tonne on March 1, and Shell U.K.'s last change was from 113 dlrs May 1.