Sienna Resources Inc V.SIE

News.

[infestor]

HABANERO RESOURCES INC. Suite 990 -1500 West Georgia Street Vancouver, BC V6G 2Z6 Telephone: [phone] Facsimile: [phone] June 26, 2002 Trading Symbol: HAO: TSX Venture Exchange MAJOR OIL AND GAS TARGET SCHEDULED TO BE TESTED TOMORROW Habanero Resources Inc. (the "Company") is extremely pleased to report that the operator has notified HAO that the crews for the frac have been mobilized onto the property and the frac is scheduled to occur tomorrow. Based on all the data gathered from other existing wells and operators the decision was made to test the Mississippian formation. This formation is primarily an oil target with a substantial amount of gas expected. Both the oil and gas shall be tested simultaneously. This formation is the bottom of the well, therefore logistically it is the most beneficial to test first. Existing fraced wells in the area flowing from the Mississippian have produced in excess of 400 barrels of oil and approximately 1 million feet of gas per day. At current market prices gross revenue for one well flowing 400 barrel and 1 million feet of gas would generate well over $5,000,000.00 per year. The operator feels that after a successful frac of the Mississippian zone, similar rates may be attainable on this first well of a proposed 15 well program. The operator has further informed the company that the pipeline construction is complete. Also, the operator feels the gravity of the oil to be tested is excellent and could be in the 45 plus gravity range, which would should a premium to current to oil price. The tank batteries for the oil are in place and we could be selling the oil and gas before the end of next week if all goes well. The frac process should take approximately 4-6 hours to do the actual frac and preliminary flow results should be known within 24-48 hour period following the frac. The Green Ranch Prospect is a proposed 15 well program consisting of 4,131 acres of leasehold on the Green Ranch in Stephens County, Texas. This leasehold is located approximately 50 miles northeast of Abilene, Texas and approximately 10 miles northwest of Breckenridge, Texas, along the North Stephens-Shackelford County line. HAO holds a 10% working interest in the Green Ranch Prospect. 80% of the project is privately held. The Green Ranch Prospect lies within an oil and gas producing province identified as Texas Railroad Commission District 7B, which encompasses 24 counties in North Central Texas. TRRC reports indicate District 7B has produced a total of 2.225 Billion barrels of Oil during the period from 1935 through June of 2001. These reports also indicate the district has made 2.277 TCF of unassociated gas (gas wells) from 1970 through June of 2001. It is estimated that this district accumulated approximately 2.78 TCF of casinghead gas. During the year 2000, District 7B made 14.1 Million barrels of oil, 18.6 BCF of casinghead gas and 45.3 BCF of unassociated gas. There has been over $1.5 million spent on the Green Ranch Prospect to date. Jason Gigliotti, a director of the Company states, "We are very excited about the frac about to happen. This first well looks extremely encouraging for both an oil and gas discovery. When you consider the apparent quality of the oil as well, this could value the well above market prices. This well could be first in a major field for HAO, and since the company has the largest working interest with the least amount of shares outstanding of the public companies involved, HAO has great leverage to this field."