TULSA, Oklahoma - An 18-year-old man pled guilty Thursday in connection to a series of QuikTrip robberies this summer. 

Nicholas Byrd has been charged with four counts of robbery with a dangerous weapon, two counts of first-degree robbery, four counts of conjoint robbery and one count of conspiracy to commit a felony, court documents show. 

Byrd and two juveniles, Tyvon Mumphrey and Thomas Avery, were arrested after Tulsa police executed a two-week stakeout operation of east Tulsa QuikTrips to try to catch them. 

Mumphrey and Avery both pled guilty earlier this month as youthful offenders. They'll have review hearings for October and sentencing hearings are scheduled for some time in 2018. 

Byrd is due back in court in November.