Data produced by Oxford Nanopore direct DNA sequencing has been shown to contain information regarding DNA modifications, providing a new and effective tool for high-throughput and high-resolution analysis of methylation patterns. We focus on 5-methylcytosine CpG DNA methylation, which plays an important role in the epigenetic regulation of mammalian gene expression. CpG methylation has been shown to be vital in development, genomic imprinting, X-inactivation and repression of transposable elements, with disruptions in methylation being associated with multiple diseases. Our work aims to apply nanopore sequencing to study methylation patterns in mice placental cells from an F1 cross of two pure mice strains. We present a work-in-progress workflow and analysis of methylation patterns in genomic imprinting as well as characteristics of nanopore data in the context of methylation analysis.