Based on this sentence: the term “underground injection” excludes the underground injection of fluids or propping agents (other than diesel fuels) pursuant to Hydraulic Fracturing operations related to oil, gas, or geothermal production activities.
Based on the sentence above I have several questions:
1. What exactly does the phrase in parentheses “(other than diesel fuels)” modify?
a. Does “(other than diesel fuels)” only refer / modify the meaning of propping agents?
b. Does “(other than diesel fuels”) also effect / modify the meaning of “fluids”?
c. Does the placement of an “or” between “fluids” and “propping agents” not prevent the phrase “(other than diesel fuels)” from modifying the meaning of fluids? If this is not the case, why? If it is, why?
d. By using the plural of “fuels” instead merely “fuel” doesn’t the meaning of “fuels” mean some combination of diesel fuel? Or does the pluralization of “fuels” simply mean any variety of fuel that constitutes diesel?
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