This data release is a collection of quantitative and qualitative data for fluid inclusions in samples from the Bear Lodge alkaline complex, Wyoming. The dataset includes:microthermometry, Raman spectroscopy, noble gas spectroscopy, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), and energy dispersive X-ray analyses of fluid inclusions. For spatial context and textural characterization, annotated scans of both sample thin sections, annotated photomicrographs of targeted fluid inclusion areas, cathodoluminescence images, and backscatter electron images of decrepitate mounds are also included.