| Cover | Apr. 03, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Document Period End Date | Apr. 03, 2023 |
| Entity Registrant Name | Riley Exploration Permian, Inc. |
| Entity Incorporation, Date of Incorporation | DE |
| Entity File Number | 1-15555 |
| Entity Tax Identification Number | 87-0267438 |
| Entity Address, Address Line One | 29 E. Reno Avenue |
| Entity Address, Address Line Two | Suite 500 |
| Entity Address, City or Town | Oklahoma City |
| Entity Address, State or Province | OK |
| Entity Address, Postal Zip Code | 73104 |
| City Area Code | 405 |
| Local Phone Number | 415-8699 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | REPX |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001001614 |
| Amendment Flag | true |
| Amendment Description | As previously disclosed in the Current Report on Form 8-K filed on April 4, 2023 (the “Prior 8-K”) with the Securities and Exchange Commission, on April 3, 2023 (the “Closing Date”), Riley Exploration - Permian, LLC (“REP LLC”), a wholly-owned subsidiary of Riley Exploration Permian, Inc. (“REPX,” together with REP LLC, the “Company”), completed its acquisition of oil and natural gas assets (the “New Mexico Acquisition”) from Pecos Oil & Gas, LLC (“Pecos”), a Delaware limited liability company, and an affiliate of Cibolo Energy Partners LLC. The acquired assets are located in Eddy County, New Mexico and primarily target the Yeso trend.This Form 8-K/A amends and supplements the Prior 8-K to include the financial information required by Item 9.01 of Form 8-K, including: (i) the audited consolidated financial statements of Pecos as of and for the years ended December 31, 2022 and 2021, (ii) the unaudited interim consolidated financial statements of Pecos as of and for the three months ended March 31, 2023 and 2022, and (iii) the unaudited pro forma financial information of the Company giving effect to the New Mexico Acquisition, as described below. |
