Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Feb. 29, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-15555
Entity Registrant Name	Riley Exploration Permian, Inc.
Entity Incorporation, State or Country Code	DE
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
Title of 12(b) Security	Common stock, par value $0.001
Trading Symbol	REPX
Security Exchange Name	NYSEAMER
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Financial Statement Error Correction	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Entity Public Float			$ 160.6
Entity Common Stock, Shares Outstanding		20,400,032
Documents Incorporated by Reference	The information required by Part III of this Annual Report on Form 10-K ("Annual Report"), to the extent not set forth herein, is incorporated herein by reference from the registrant's definitive proxy statement relating to the Annual Meeting of Stockholders to be held in 2024, which definitive proxy statement shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report relates.
Entity Central Index Key	0001001614
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY