COLOMBIAN GROUP SUSPENDS BOMBINGS OF PIPELINES A Colombian group announced the suspension of its bombings of oil pipelines pending the government's levy of a social tax on foreign petroleum companies and an 800 mln dlrs fine on the Occidental Petroleum Corp <OXY>. There was no indication the government would meet the conditions demanded by the leftist National Liberation Army (ELN). According to the state oil firm, ECOPETROL, the ELN carried out 72 attacks on petroleum pipelines between 1984 and 1986. The assaults, the most recent launched two months ago, have caused an estimated total of 50 mln dlrs in damage. In a communique, the ELN said it would demand a tax of one dollar per barrel of crude oil pumped by foreign firms as a condition for maintaining its suspension of the assaults. Foreign oil firms pump an average of 225,083 barrels per day in Colombia. Colombian tax authorities are investigating Occidental, a U.S.-owned firm, for alleged tax evasion. If the charges are proven, the firm could face a fine of up to 800 mln dlrs. The ELN demands the government charge the penalty.