Show Federal Oil Board NotAble Not L Able to O. O K Restriction WASHINGTON April 3 AP AP- AP Secretary Wilbur toda today informed representatives of the tie American America petroleum institute that Attorney General Mitchell had ruled that the tIlo f federal oil oh conservation board had no right to grant approval of the institutes institute's proposed production curtailment cur cur- nt Secretary Wilbur read to the representatives rep rep- r of the institute a letter flom from Attorney General Mitchell 1 which whIch an answered hr d the question L whether the tie federal oil conservation r hoard could ap approve the proposed curtailment but which declared r that tho the attorney general s is not au- au Ji tl d by law to give an opinion i on OTt tho the actual legality of tho pros proY proposed pro pro- Y s posed program The institute had asked 1 the tho conservation board for approval of its proposal tp curtail oil on production in 1929 to the tho 1923 1523 leel level |