EXHIBIT 99.1
Estimated Ranges
(See text for additional information)
				2Q 2009			Full Year 2009
Daily Production
	Natural Gas (MMcfd)
		United States		1,155	-	1,185	1,115	-	1,180
		Canada		205	-	225	205	-	235
		Trinidad		235	-	265	246	-	276
		Other International		11	-	15	11	-	15
		Total		1,606	-	1,690	1,577	-	1,706
	Crude Oil and Condensate (MBbld)
		United States		39.0	-	44.2	44.0	-	50.0
		Canada		2.8	-	3.7	3.6	-	4.6
		Trinidad		2.6	-	3.8	2.7	-	3.7
		Total		44.4	-	51.7	50.3	-	58.3
	Natural Gas Liquids (MBbld)
		United States		18.5	-	20.5	20.0	-	22.0
		Canada		0.8	-	1.0	0.8	-	1.0
		Total		19.3	-	21.5	20.8	-	23.0
	Natural Gas Equivalent Volumes (MMcfed)
		United States		1,500	-	1,573	1,499	-	1,612
		Canada		227	-	253	231	-	269
		Trinidad		251	-	288	262	-	298
		Other International		11	-	15	11	-	15
		Total		1,989	-	2,129	2,003	-	2,194
Operating Costs
	Unit Costs ($/Mcfe)
		Lease and Well		$ 0.75	-	$  0.79	$  0.75	-	$  0.80
		Transportation Costs		$ 0.34	-	$  0.39	$  0.34	-	$  0.40
		Depreciation, Depletion and Amortization		$ 2.00	-	$  2.08	$  1.98	-	$  2.08
Expenses ($MM)
	Exploration, Dry Hole and Impairment			$118.0	-	$ 125.0	$ 442.0	-	$ 482.0
	General and Administrative			$  58.0		$   62.0	$ 235.0		$ 258.0
	Gathering and Processing			$  12.0	-	$   16.0	$   50.0	-	$   70.0
	Capitalized Interest			$  11.0	-	$   15.0	$   49.0	-	$   53.0
	Net Interest			$  18.0	-	$   22.0	$   73.0	-	$   82.0
Taxes Other Than Income (% of Revenue)				7.0%	-	8.0%	5.7%	-	8.0%
Income Taxes
	Effective Rate			30%	-	40%		>	35%
	Current Taxes ($MM)			$     20	-	$      25	$      80	-	$    100
Capital Expenditures ($MM) - FY 2009:
- Exploration and Development, excluding Acquisitions							Approximately		$ 2,850
- Gathering, Processing and Other							Approximately		$    250
Pricing - Refer to I.(b) Benchmark Commodity Pricing in text
	Natural Gas ($/Mcf)
		Differentials (include the effect of physical contracts)
			United States - below NYMEX Henry Hub	$  0.55	-	$   0.90	$   0.55	-	$   0.75
			Canada - below NYMEX Henry Hub	$  0.50	-	$   0.90	$   0.50	-	$   0.75
		Realizations
			Trinidad	$  1.25	-	$   1.65	$   1.35	-	$   1.55
			Other International	$  3.50	-	$   4.00	$   4.00	-	$   5.25
	Crude Oil and Condensate ($/Bbl)
		Differentials
			United States - below WTI	$  7.40	-	$ 12.00	$   8.25	-	$   9.75
			Canada - below WTI	$  4.35	-	$   7.50	$   4.00	-	$   6.00
			Trinidad - below WTI	$  8.50	-	$ 12.50	$   8.50	-	$ 12.50