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 PROVEN RESERVES FALL
    FORT WORTH, Texas, March 12 - The San Juan Basin Royalty
Trust said proved reserves as of December 31 were estimated at
283.1 thousand cubic feet of gas and 1,087,000 barrels of oil.
    In the year-ago period, it said proved reserves were
estimated at 346.4 thousand cubic feet of gas  and 1,974,000
barrels of oil.
    It said the present value of future net revenues discounted
10 pct was 156.2 mln dlrs compared with 446.8 mln dlrs in the
year-ago period.
    It also said that about 60 net infill wells are not
economical to drill at December 31 prices.