Diamond Shamrock Corp said that 
effective today it had cut its contract prices for crude oil by 
1.50 dlrs a barrel. 
    The reduction brings its posted price for West Texas 
Intermediate to 16.00 dlrs a barrel, the copany said. 
    "The price reduction today was made in the light of falling 
oil product prices and a weak crude oil market," a company 
spokeswoman said. 
    Diamond is the latest in a line of U.S. oil companies that 
have cut its contract, or posted, prices over the last two days 
citing weak oil markets. 
 Reuter

DIAMOND SHAMROCK (DIA) CUTS CRUDE PRICES

OPEC MAY HAVE TO MEET TO FIRM PRICES - ANALYSTS

Texaco Canada said it lowered the 
contract price it will pay for crude oil 64 Canadian cts a 
barrel, effective today. 
    The decrease brings the company's posted price for the 
benchmark grade, Edmonton/Swann Hills Light Sweet, to 22.26 
Canadian dlrs a bbl. 
    Texaco Canada last changed its crude oil postings on Feb 
19. 
 Reuter

TEXACO CANADA <TXC> LOWERS CRUDE POSTINGS

Marathon Petroleum Co said it reduced 
the contract price it will pay for all grades of crude oil one 
dlr a barrel, effective today. 
    The decrease brings Marathon's posted price for both West 
Texas Intermediate and West Texas Sour to 16.50 dlrs a bbl. The 
South Louisiana Sweet grade of crude was reduced to 16.85 dlrs 
a bbl. 
    The company last changed its crude postings on Jan 12. 
 Reuter

MARATHON PETROLEUM REDUCES CRUDE POSTINGS

Houston Oil Trust said that independent 
petroleum engineers completed an annual study that estimates 
the trust's future net revenues from total proved reserves at 
88 mln dlrs and its discounted present value of the reserves at 
64 mln dlrs. 
    Based on the estimate, the trust said there may be no money 
available for cash distributions to unitholders for the 
remainder of the year. 
    It said the estimates reflect a decrease of about 44 pct in 
net reserve revenues and 39 pct in discounted present value 
compared with the study made in 1985. 
 Reuter