<PAGE>

Exhibit 10.11

                           SILVER RAMONA MINING, INC.
                                SENIOR MANAGEMENT
                                  STOCK OPTION


         Silver Ramona Mining, Inc., a Delaware corporation maintaining offices
and principal place of business in Grand Prairie, Texas ("Company") for and in
consideration of the sum of Ten Dollars ($10.00) to it in hand paid by Paul
Nolan ("Nolan") other good and valuable consideration, is GRANTED and by these
presents does GRANT unto Nolan the right and option to purchase 100,000 shares
of authorized and unissued and common stock of Company ("Shares") subject to the
following terms and conditions:

         1. PURPOSE. The Purpose of the Stock Option Plan is to attract and
retain outstanding key management personnel and to reward directors of the
Company for loyal service and to stimulate an active interest in the development
and financial success of the Company.

         2. ADMINISTRATION. This plan shall be administered by an executive
compensation committee appointed by the Board of Directors of the Company. The
committee shall not consist of less than three members of the Board of
Directors.

         3. PURCHASE PRICE. The purchase price for each share of stock issued
pursuant to this option is $1.00 per share.

         4. EXERCISE OF OPTIONS. Nolan is provided options by Company pursuant
to this Stock Option Agreement as follows:

         30,000 Shares offered and available at the end of the first calendar
year of service with the Company;

         35,000 Shares offered and available at the end of the second calendar
year of service with the Company; and

         35,000 Shares offered and available at the end of the third calendar
year of service with the Company.

         The right to exercise each of the options provided in this Section Four
is limited to the time period stated above. The option may be exercised in each
prescribed period by the delivery of written notice to Company at the address of
its principal office advising of Nolan's intent to exercise the option

<PAGE>

and such notice shall specify the number of shares as to which the option is
being exercised. Shares will be issued within seven (7) days after receipt of
the notice.

         5. NONTRANSFERABILITY. An option granted under this plan may not be
transferred except by will or the laws of descent and distribution and, during
the lifetime of Nolan, it may be governed in accordance with this Option
Agreement or with the terms of that Management Agreement of even date herewith.

         6. VIOLATION OF APPLICABLE LAW. This option may not be exercised if the
issuance of the Shares covered hereby and anytime would constitute a violation
of existing applicable federal or state securities law rule or regulation.
Nolan, as a condition to his exercise of the option, shall at the time of each
exercise of the option, represent to the Company in form and manner satisfactory
to Company and its counsel, that the Shares to which the option is being
exercised are being acquired for investment purposes only, and not with a view
toward distribution or resale.

         7. TERM. This stock option shall terminate in any event at the
expiration of five years from the effective date.

         IN WITNESS WHEREOF, the Company has caused this instrument to be
executed on this 1st day of January, 2001.

                                               Silver Ramona Mining, Inc.

                                               By:
                                                  ------------------------------
                                                      President