A district court held that individual ingredients of hydraulic fracturing formulas are trade secrets and do not need to be publicly disclosed. The Wyoming Public Records Act does not define trade secrets, but the Wyoming oil and gas commission's policy for evaluating trade secrets is reasonable and ...

A district court held that EPA has no mandatory or nondiscretionary duty to make a determination as to whether lead emissions from general aviation aircraft engines using aviation gasoline endanger the public health or welfare under CAA §231(a)(2)(A). A finding that emissions cause or contribute to...