Noble Energy Announces Another Significant Discovery
in the Levant Basin Offshore Israel

HOUSTON, Feb. 6, 2012

Noble Energy, Inc. (NYSE: NBL) announced today a natural gas discovery at the Tanin prospect offshore Israel. The discovery well was drilled to a depth of 18,212 feet and encountered approximately 130 feet of gross natural gas pay in high-quality lower Miocene sands. The Tanin well is located in the Alon A license, approximately 13 miles northwest of the Tamar field, and in 5,100 feet of water. Discovered gross resources are estimated to range(1) between 0.9 and 1.4 trillion cubic feet (Tcf) with a gross mean of 1.2 Tcf. This discovery de-risks other prospects located in the vicinity of Tanin.

The Tanin discovery is the sixth consecutive field discovery for Noble Energy and its partners in the Levant Basin. Four of the discovered fields have estimated gross mean resource sizes of over 1 Tcf. Including Tanin, total discovered gross mean resources in the Levant Basin are now estimated to be approximately 35 Tcf.

Noble Energy is the operator of the Alon A license with a 47.06 percent interest. Co-owners are Avner Oil and Delek Drilling each with a 26.47 percent interest.

Noble Energy is a leading independent energy company engaged in worldwide oil and gas exploration and production. The Company has core operations onshore in the U.S., primarily in the DJ Basin and Marcellus Shale, in the deepwater Gulf of Mexico, offshore Eastern Mediterranean, and offshore West Africa. Noble Energy is listed on the New York Stock Exchange and is traded under the ticker symbol NBL. Further information is available at www.nobleenergyinc.com. (1) Range of resource estimate based on 75th and 25th percentile probabilities

Source: Noble Energy, Inc.