...commenced on said lands and prosecuted with due diligence on or before the 18th of November, 1920, this lease shall terminate as to both parties unless the lessee, on or before that date, shall pay or 11, wan not a prosecution of the work tender to the lessors or to the lessors' credit faith for development...

...within twelve months from the expiration of the last rental period for which rental has been paid, this lease shall terminate as to both parties, unless the lessee on or before the expiration of said twelve months shall resume the payment of rentals in the same amount and in...

...the lease provides: "If no well be completed on said land on or before the 4th day of January, 1917, this lease shall terminate as to both parties unless...before that date shall pay or tender to the lessor .$160 which shall operate as a rental covering the privilege of deferring the completion of the well...

...commenced on said land on or before the expiration of one year from the date of said lease, the same shall terminate as to both parties, unless the lessee,...before that date shall pay, or tender to the lessor, a specific sum of money which shall operate as a rental and cover the privilege of deferring the commencement...

...1917, and provided, if no well be commenced on said land on or before the 20th day of July, 1918, the lease shall terminate as to both parties, unless the lessee on or before that date should pay or tender to the lessor or the lessor's credit in the Citizens' State Bank of Okmulgee or...

...lease defining what Cross was to do Is in these words: "If no well be commenced on said land on or before the day of , 191—, this lease shall terminate...lessee on or before that date shall pay or tender to , who is hereby appointed agent for such purpose, in the manner hereinafter provided, the sum of dollars,...

...operations for the drilling of a well are not commenced on said land on or before the 1st day of June, 1918, this lease shall terminate as to both parties, unless...lessee, on or before that date, shall pay or tender the lessor the sum of forty-five ($45.25) and «/100 dollars in the manner hereinafter provided, which...

...within twelve months from the expiration of the last rental period for which rental has been paid, this lease shall terminate as to both parties, unless the lessee, on or before the expiration of said twelve months, shall resume payment of rentals in the same manner as hereinbefore...

...the premises. If no well be commenced on or before the 1st day of May, 1920, this lease terminates as to both parties, unless the lessee on or before that date pay or tender to the lessor $900, which shall operate as a rental and cover the privilege of deferring...

...operations for the drilling of an oil or gas well are not begun on said land on or before the first day of , 191.... this lease shall terminate as to...date shall pay or tender to the lessor, or to the credit of the lessor in the Bank at , (which shall continue as the depository regardless of changes...