Jean Baldwin, 52, and Stacey Sherard Merrill, 39, were wanted on charges of felony larceny of a motor vehicle, possession of a stolen motor vehicle and felony conspiracy.
Lorenzo Lamont Harrison, 28, was wanted for larceny of a motor vehicle and possession of a stolen vehicle.
The stolen vans belonged to the Triangle Residential Options for Substance Abusers.
Investigators said that Baldwin and Merrill stole a 1993 purple Plymouth Voyager from TROSA building on James Street Sept. 29. Harrison stole a 1994 green Plymouth Voyager while making deliveries in Chapel Hill Oct. 2, police said.
All three remained on the loose, and neither van had been located Friday, police said.
Anyone with information on the whereabouts of Baldwin, Merrill, Harrison or the stolen vans was asked to call Investigator R.J. Guardino Jr. at 919-560-1020, ext. 236 or Crime Stoppers at 919-683-1200. Crime Stoppers pays cash rewards for information leading to arrests in felony cases, and callers never have to identify themselves.
TROSA runs a long-term residential therapy community and offers vocational education, mentoring and other services to substance abusers.