Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Summary of Shares Repurchased Under Stock Purchase Program

The following table is a summary of the shares under the program:

	Nine Months Ended September 30,
	2015		2014
Number of shares repurchased		—		—
Average price of shares repurchased		—		—
Shares remaining to be repurchased		194,723		194,723

Required Capital Amounts and Company's Respective Ratios

The actual and required capital amounts and ratios are shown in the following table:

						Required					To Be Well
						For Capital					Capitalized Under
						Adequacy					Prompt Corrective
	Actual					Purposes					Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of September 30, 2015:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	662,299		15.27	%	$	346,902		8.00	%	N/A		N/A
BancFirst		606,989		14.08	%		344,890		8.00	%	$	431,113		10.00	%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	595,329		13.73	%	$	195,133		4.50	%	N/A		N/A
BancFirst		546,019		12.67	%		194,001		4.50	%	$	280,223		6.50	%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	621,329		14.33	%	$	260,177		6.00	%	N/A		N/A
BancFirst		566,019		13.13	%		258,668		6.00	%	$	344,890		8.00	%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	621,329		9.77	%	$	256,245		4.00	%	N/A		N/A
BancFirst		566,019		8.91	%		255,669		4.00	%	$	319,586		5.00	%