League City police on Monday identified the two women as 30-year-old Audrey Lee Cook, from Memphis, Tennessee, and 34-year-old Donna Prudhomme, from Port Arthur, Texas.
Cook was found in 1986 and Prudhomme was found in 1991. Both women were found in an oil field located along Calder Road in League City. Two other women, who've previously been identified, were also found in the same oil field.
Police say the four slayings remain unsolved.
Authorities say Cook and Prudhomme were identified through DNA phenotyping, which predicts physical appearance and ancestry from unidentified DNA evidence.
Police are asking for the public's help in finding out more about Cook and Prudhomme.
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