Proppant for use in oil well and gas well hydraulic fracturing operations

Caps, hats and visors

EXPANDED VOLCANIC GLASS IN A SEMIPOWDER STATE

RESILIENT HIGHLY COMPRESSIBLE MATERIAL COMPRISING MUTUALLY ENTANGLED SPOT JOINED FLEXIBLE FILAMENTS IN THE FORM OF LONG NATURAL OR SYNTHETIC, ANIMAL, VEGETABLE, OR MINERAL FIBERS FORMING A SPRINGY MASS PERMEATED BY VOIDS

PORCELAIN COATED METAL SHEETS

KEROSENE-OIL