This presentation will give an overview of Advancing an Ecosystem for Open Educational Resources: OER in Texas Higher Education. This biennial survey is a collaboration between the Digital Higher Education Consortium of Texas, the Texas Higher Education Coordinating Board, and the Institute for the Study of Knowledge Management in Education. The 2021 OER landscape survey was administered to all 158 two- and four-year public and independent, as well as 11 health-related, institutions across the state. The survey analysis, building on findings from the 2019 OER landscape survey, shows, among other insights, continued growth in commitment to OER across the state. Furthermore, about one-third of institutions across the state are beginning to provide comprehensive, systems-based supports for OER by engaging multiple offices and roles on campus. At the same time, the survey findings reveal insights into priority areas and challenges for some institutions as they work to advance OER adoption and use, including the importance of increasing both 1) faculty buy-in in and participation in OER professional learning in order to grow OER adoption, and 2) participation in statewide OER support initiatives. The report concludes by outlining opportunities for addressing existing barriers to OER scale, and for advancing the work being done by the state’s OER champions—including new collaboration, professional learning, funding, and curriculum development supports focused on building an OER ecosystem within and across Texas institutions. After this overview, attendees can share their work and ideas to conduct research and build an OER ecosystem in their own contexts.