Tesis ini membahas tentang penilaian risiko yang dilakukan di Stasiun Pengumpul Gas Y PT X.  Metode penilaiaan risikonya menggunakan penggabungan 2 (dua) analisis yaitu analisis risiko proses melalui metode Hazops dan analisis risiko peralatan melalui metode risk based inspection (RBI). Penelitian ini adalah penelitian observational dengan pendekatan analisis risiko semikuantitatif. Hasil penelitian ini memberikan gambaran tingkat risiko proses dan peralatan di Stasiun Pengumpul Gas Y, dimana tingkat risiko tertinggi ada pada proses dan peralatan tanki penampung kondensat. Tingkat risiko tersebut diperoleh dari kombinasi kemungkinan kejadian (likelihood) dan konsekuensi/keparahan dampak (severity). Selain itu dihasilkan butir-butir rekomendasi untuk mengendalikan risiko sampai pada risiko yang dapat diterima. Kata kunci : Risiko, likelihood, severity/konsekuensi.

The focus of this research is risk assessment carried out at Gas Gathering Station Y in PT X. Risk assessment method applied are combination between process hazard analysis by using Hazops method and equipment risk analysis by using risk based inspection (RBI) method. The research is observational by semiquantitative analysis approach. The research gives description regarding process and equipment risk level at Gas Gathering Station Y, which is the highest risk level is on the process and equipment named condensate storage tank. Risk level is calculated by combining likelihood and severity/consequence value. The research also recommend several risks control to reduce risk to be acceptable risk. Key words : Risk, likelihood, severity/consequence.