v3.25.1
Cover
Jun. 13, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 13, 2025
Entity File Number 000-18774
Entity Registrant Name SPINDLETOP OIL & GAS CO.
Entity Central Index Key 0000867038
Entity Tax Identification Number 75-2063001
Entity Incorporation, State or Country Code TX
Entity Address, Address Line One 12850 Spurling Rd.
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75230
City Area Code (972)
Local Phone Number 644-2581
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false