| Cover | May 22, 2024 |
| Cover [Abstract] | |
| Entity Registrant Name | PETROGAS COMPANY |
| Entity Central Index Key | 0001609258 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | true |
| Document Period End Date | May 22, 2024 |
| Entity Ex Transition Period | false |
| Entity File Number | 333-196409 |
| Entity Incorporation State Country Code | NV |
| Entity Tax Identification Number | 98-1153516 |
| Entity Address Address Line 1 | 12800 Post Oak B Blvd |
| Entity Address Address Line 2 | Suite 4100 |
| Entity Address City Or Town | Houston |
| Entity Address State Or Province | TX |
| Entity Address Postal Zip Code | 77056 |
| City Area Code | 832 |
| Local Phone Number | 253-1152 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
