<PAGE>
Exhibit 7.1
June 28, 2000
Deloitte & Touche LLP
2400 Scotia Centre
700 Second Street SW
Calgary, Alberta T2P 0S7
Attn: Debra Gerlach, C.A.
Dear Sir/Madam:
This letter constitutes notification that Energy Exploration Technologies has,
with reluctance, accepted the resignation of Deloitte & Touche LLP as its
auditors in anticipation of the conflict of interest that would arise under the
rules of the Securities and Exchange Commission governing the independence of
auditors. The particulars of that conflict and other disclosures relating to
your engagement as required under Rule 304 of Regulation S-X are set forth in
item 4(a)(1) of the form 8-K that we have included with this letter, and which
we intend to file with the Securities and Exchange Commission. We hereby request
that Deloitte & Touche furnish NXT with a letter addressed to the Securities and
Exchange Commission, which we will file as an exhibit with the form 8-K, stating
whether it agrees with the statements contained in item 4(a)(1) of the form 8-K
and, if not, stating the respects in which you disagree.
We thank you in advance for your cooperation in responding to the foregoing
request as well as your cooperation in effecting the transition to our new
independent auditors, Arthur Andersen LLP.
Very truly yours,
/s/ John M. Woodbury, Jr.
John M. Woodbury, Jr.
Chief Financial Officer & General Counsel
