Document and Entity Information (USD $)	12 Months Ended
	Mar. 31, 2014	Jun. 09, 2014	Sep. 30, 2013
Document And Entity Information
Entity Registrant Name	EARTHSTONE ENERGY INC
Entity Central Index Key	0000010254
Document Type	10-K
Document Period End Date	Mar. 31, 2014
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 21,048,567
Entity Common Stock, Shares Outstanding		1,729,123
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2014