The register
The register lists Mj Petroleum Ltd in Leicester as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
Companies House lists it as MJ Petroleum Ltd, number 12700530, incorporated 2020: 6 years of filings behind the name. The registered office is at 28 Ranton Way, Leicester, Leicestershire, LE3 9TH, LE3 9TH. Its filed activity puts it in retail.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.