Derivative Financial Instruments (Schedule Of Oil Derivative Contracts Volume And Weighted Average Prices) (Details)	Sep. 30, 2014 Rollfactor Swap Contracts [Member]	Sep. 30, 2014 Oil contracts [Member] Collar Contracts With Short Puts for Current Year [Member]	Sep. 30, 2014 Oil contracts [Member] Collar Contracts With Short Puts for Year 2 [Member]		Sep. 30, 2014 Oil contracts [Member] Collar Contracts With Short Puts for Year 3 [Member]		Sep. 30, 2014 Oil contracts [Member] Collar Contracts With Short Puts for Year 2 - Extendible for Year 3 [Member]		Sep. 30, 2014 Oil contracts [Member] Swap Contracts for Current Year [Member]	Sep. 30, 2014 Oil contracts [Member] Swap Contracts for Year 2 [Member]	Sep. 30, 2014 Oil contracts [Member] Swap Contracts for Year 3 [Member]	Sep. 30, 2014 Oil contracts [Member] Rollfactor Swap Contracts for Current Year [Member]	Sep. 30, 2014 Oil contracts [Member] Rollfactor Swap Contracts for Year 2 [Member]		Sep. 30, 2014 Oil contracts [Member] Rollfactor Swap Contracts for Year 3 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Current Year [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Current Year [Member] Short Put [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 2 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 2 [Member] Short Put [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 3 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 3 [Member] Short Put [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 2 - Extendible for Year 3 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 2 - Extendible for Year 3 [Member] Short Put [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Swap Contracts for Current Year [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Swap Contracts for Year 2 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Swap Contracts for Year 3 [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Rollfactor Swap Contracts for Current Year [Member]	Sep. 30, 2014 Oil contracts, price per bbl [Member] Rollfactor Swap Contracts for Year 2 [Member]		Sep. 30, 2014 Oil contracts, price per bbl [Member] Rollfactor Swap Contracts for Year 3 [Member]	Oct. 30, 2014 Subsequent Event [Member] Oil contracts [Member] Collar Contracts With Short Puts for Year 3 [Member]	Oct. 30, 2014 Subsequent Event [Member] Oil contracts [Member] Rollfactor Swap Contracts for Year 2 [Member]		Oct. 30, 2014 Subsequent Event [Member] Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 3 [Member]	Oct. 30, 2014 Subsequent Event [Member] Oil contracts, price per bbl [Member] Collar Contracts With Short Puts for Year 3 [Member] Short Put [Member]	Oct. 30, 2014 Subsequent Event [Member] Oil contracts, price per bbl [Member] Rollfactor Swap Contracts for Year 2 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount		69,000	95,767	[1]	59,000	[1],[2]	5,000	[1]	15,000	0	0	6,630	5,000	[3]	0																11,000	12,000	[3]
Derivative, Average Cap Price																114.05		99.36		98.55		100.08												87.76
Derivative, Average Floor Price																93.70		87.98		86.14		90.00												82.82
Derivative, Notional Amount, Price Per Unit																	77.61		73.54		74.75		80.00				1.10	0.60	[4]	0.00					72.82	0.15	[4]
Derivative, Swap Type, Average Fixed Price																								96.31	0.00	0.00
NYMEX swap multiple, second nearby month	0.6667
NYMEX swap multiple, third nearby month	0.3333

[1] (a)Counterparties have the option to extend for an additional year 5,000 BBLs per day of 2015 collar contracts with short puts with a ceiling price of $100.08 per BBL, a floor price of $90.00 per BBL and a short put price of $80.00 per BBL. The option to extend is exercisable on December 31, 2015. These contracts give the counterparties the option to extend the contracts under the same terms for an additional year if the option to extend is exercised by the counterparties on December 31, 2015.

[2] (b)During the period from October 1, 2014 through October 30, 2014, the Company entered into an additional 11,000 BBL per day of 2016 collar contracts with short puts with a ceiling price of $87.76 per BBL, a floor price of $82.82 per BBL and a short put price of $72.82 per BBL.

[3] (c)During the period from October 1, 2014 through October 30, 2014, the Company entered into an additional 12,000 BBL per day of 2015 rollfactor swap contracts with a NYMEX roll price of $0.15 per BBL.

[4] (d)Represents swaps that fix the difference between (i) each day's price per BBL of WTI for the first nearby month less (ii) the price per BBL of WTI for the second nearby NYMEX month, multiplied by .6667; plus (iii) each day's price per BBL of WTI for the first nearby month less (iv) the price per BBL of WTI for the third nearby NYMEX month, multiplied by .3333.