Brent crude, the international standard, declined $1.63 to $50.63 per barrel. Brent crude, the basis for pricing international oils, declined 68 cents to $49.48 per barrel in London. U.S. benchmark crude oil lost $1.46 to $47.78 per barrel in electronic trading on the New York Mercantile Exchange. In energy markets, benchmark U.S. crude lost 67 cents to $46.35 per barrel in electronic trading on the New York Mercantile Exchange. The decline snapped a three-day winning streak for the benchmark index, but it still notched a 1.3% weekly gain that more than made up its prior weeks loss.
U.S. benchmark crude oil is cheaper than natural gas.
( z0 cheap :ARG1 ( z1 oil :mod ( z2 crude ) :mod ( z3 benchmark ) :mod ( z4 country :name ( z5 name :op "U.S." ) ) ) :ARG2-of ( z6 have-degree :ARG1 z1 :ARG3 ( z7 more ) :ARG4 ( z8 gas :mod ( z9 natural ) ) ) )
(z0 / cheap-02
    :ARG1 (z1 / oil
              :mod (z2 / crude)
              :mod (z3 / benchmark)
              :mod (z4 / country
                       :name (z5 / name
                                 :op1 "U.S.")))
    :ARG2-of (z6 / have-degree-91
                 :ARG1 z1
                 :ARG3 (z7 / more)
                 :ARG4 (z8 / gas
                           :mod (z9 / natural))))
U.S. benchmark crude oil is cheaper than natural gas .
z4 :name z5
z5 :op1 0
z1 :mod z2
z1 :mod z3
z1 :mod z4
z0 :ARG1 z1
z0 :ARG2-of z6
z6 :ARG1 z1
z6 :ARG3 z7
z8 :mod z9
z6 :ARG4 z8