Petrolia Consolidated Independent School District is a public school district based in Petrolia, Texas (USA).
In addition to Petrolia, the district also serves the cities of Dean and Byers. In May 2012 voters of Petrolia and the neighboring Byers Independent School District agreed to consolidate with Petrolia surviving after the merger. The merger took effect May 25, 2012.
For the 2021-2022 school year, the school district was given a "B" by the Texas Education Agency.
The district changed to a four-day school week for most, but not all, weeks in fall 2021.