Some important dates in Phillips history include:
1905 -- Phillips brothers hit first of 81 wells in a row without a single dry hole.
1917 -- Company founded, first gas liquids plant opens.
1922 -- Phillips forms the predecessor of what today is Duke Energy Field Services.
1923 -- Company wins first patent on process for recovering natural gasoline from natural gas.
1927 -- Phillips begins marketing gasoline through first of more than 10,000 service stations. New lighter, more efficient Phillips aviation fuel powers first flight between U.S. and Hawaii.
1928 -- Phillips develops first aviation refueling trucks.
1929 -- Phillips first to develop and market propane for home heating and cooking.
1930 -- Phillips produces and sells first gasoline designed to match seasonal conditions.
1931 -- Phillips builds first long-distance multi-product pipeline.
1940 -- Phillips invents HF Alkylation process making high-octane gasoline possible.
1944 -- Phillips first to produce "cold" synthetic rubber that is superior to natural rubber.
1947 -- Phillips drills first well out of sight of land, opening offshore production.
1951 -- Phillips invents polyethylene plastics. Phillips researchers discover polypropylene and develop a new process to produce high-density polyethylene.
1952 -- Phillips is the first U.S. oil company approved by the U.S. Department of the Interior to drill in Alaska.
1954 -- Phillips develops and introduces first all-season motor oil.
1955 -- Phillips sets record for farthest offshore well drilled to date -- 40 miles.
1958 -- Wham-O Manufacturing began production of the Hula-Hoop™ using the Phillips plastic, Marlex™ .
1960 -- Phillips invents anti-icing additive for jet fuels.
Debenture Bond, issued in the 1970’s
Printed by the American Bank Note Company
8” (h) x 12” (w)
This certificate has vertical fold lines, punch hole cancels in signature areas and body, some toning from age.