Quarterly report pursuant to Section 13 or 15(d)

Cover

v3.21.2
Cover - shares
9 Months Ended
Jun. 30, 2021
Aug. 13, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2021  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2021  
Current Fiscal Year End Date --09-30  
Entity File Number 000-51638  
Entity Registrant Name GULFSLOPE ENERGY, INC.  
Entity Central Index Key 0001341726  
Entity Tax Identification Number 16-1689008  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 1331 Lamar St.  
Entity Address, Address Line Two Suite 1665  
Entity Address, City or Town Houston  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77010  
City Area Code 281  
Local Phone Number 918-4100  
Title of 12(b) Security Common stock, par value $0.001 per share  
Trading Symbol GSPE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   1,268,240,346