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In this work, we examined characteristics of the currently confirmed exoplanet population in order to characterize some of the crucial parameters for ocean formation. Two correlation heatmaps were created: one for the exoplanets in general, and one for exoplanets that can be found in the habitable zone according to calculations. Based on these, we found possible associations between planetary radius/mass, stellar metallicity, and multiple characteristics. We propose plans for further studies of possible proxies for exoplanetary ocean exploration.