DUPONT UNIT RAISES CRUDE OIL POSTINGS
  Conoco Inc, a subsidiary of duPont
  deNemours &lt;DD>, said it raised the contract price it will pay
  for all grades of crude oil 50 cts a barrel, effective
  yesterday.
      The increase brings Conoco's posted price for West Texas
  Intermediate to 19.00 dlrs a barrel. The West Texas Sour grade,
  at 34 API, now stands at 18.10 dlrs a barrel. Light Louisiana
  was also raised 50 cts to 19.35 dlrs barrel.
      Conoco last changed its crude postings on May 21.
  

