Copyright Registration Certificate for 'PETRODOCS' by Petrocon Engineering, Inc.

Summary

This document is a certificate of copyright registration issued by the U.S. Copyright Office for a computer program titled 'PETRODOCS.' The copyright is registered to Petrocon Engineering, Inc., based in Beaumont, Texas, as a work made for hire. The work was completed in 1998, and the registration became effective on August 21, 2002. The certificate confirms Petrocon Engineering, Inc. as the copyright claimant and provides official recognition of their rights to the software.

EX-10.71 4 dex1071.txt COPYRIGHT REGISTRATION EXHIBIT 10.71 FORM TX [GRAPHIC] CERTIFICATE OF REGISTRATION For a Nondramatic Literary Work UNITED STATES COPYRIGHT OFFICE This Certificate issued under the seal of the Copyright ---------------------------------------------------- Office in accordance with title 17, United States Code, attests that registration has been made for the work TXu 1-075-739 identified below. The information on this certificate has ---------------------------------------------------- been made a part of the Copyright Office records. EFFECTIVE DATE OF REGISTRATION [GRAPHIC] /s/ Marybeth Peters 8 21 02 -------------------------- Month Day Year OFFICIAL SEAL REGISTER OF COPYRIGHTS ---------------------------------------------------- United States of America DO NOT WRITE ABOVE THIS LINE. IF YOU NEED MORE SPACE, USE A SEPARATE CONTINUATION SHEET. ==================================================================================================================================== 1 TITLE OF THIS WORK PETRODOCS ------------------------------------------------------------------------------------------------------------------------ PREVIOUS OR ALTERNATIVE TITLES ------------------------------------------------------------------------------------------------------------------------ PUBLICATION AS A CONTRIBUTION If this work was published as a contribution to a periodical, serial, or collection, give information about the collective work in which the contribution appeared. Title of Collective Work ------------------------------------------------------------------------------------------------------------------------ If published in a periodical or serial give: Volume Number Issue Date On Pages ==================================================================================================================================== 2 NAME OF AUTHOR DATES OF BIRTH AND DEATH Year Born Year Died a PETROCON ENGINEERING, INC. ----------------------------------------------------------------- ---------------------------------------------------- Was this contribution to the AUTHOR'S NATIONALITY OR DOMICILE WAS THIS AUTHOR'S CONTRIBUTION TO work a "work made for hire"? Name of Country THE WORK If the answer to either [X] Yes Citizen of USA Anonymous? [ ] Yes [ ] No of these questions is OR "Yes," see detailed [ ] No Domiciled in BEAUMONT, TEXAS Pseudonymous? [ ] Yes [ ] No instructions. ------------------------------------------------------------------------------------------------------------------------ NOTE NATURE OF AUTHORSHIP Briefly describe nature of material created by this author in which copyright is claimed. COMPUTER PROGRAM Under the ======================================================================================================================== law, the b NAME OF AUTHOR DATES OF BIRTH AND DEATH "author" Year Born Year Died of a "work ----------------------------------------------------------------- ---------------------------------------------------- made for Was this contribution to the AUTHOR'S NATIONALITY OR DOMICILE WAS THIS AUTHOR'S CONTRIBUTION TO hire" is work a "work made for hire"? Name of Country THE WORK If the answer to either generally [X] Yes Citizen of Anonymous? [ ] Yes [ ] No of these questions is the OR ------------------ "Yes," see detailed employer, [ ] No Domiciled in Pseudonymous? [ ] Yes [ ] No instructions. not the ---------------- employee ------------------------------------------------------------------------------------------------------------------------ (see NATURE OF AUTHORSHIP Briefly describe nature of material created by this author in which copyright is claimed. instruct- ions). ======================================================================================================================== For any c NAME OF AUTHOR DATES OF BIRTH AND DEATH part of Year Born Year Died this work ----------------------------------------------------------------- ---------------------------------------------------- that was Was this contribution to the AUTHOR'S NATIONALITY OR DOMICILE WAS THIS AUTHOR'S CONTRIBUTION TO "made for work a "work made for hire" ? Name of Country THE WORK If the answer to either hire" [X] Yes Citizen of Anonymous? [ ] Yes [ ] No of these questions is check OR ------------------ "Yes," see detailed "Yes" in [ ] No Domiciled in Pseudonymous? [ ] Yes [ ] No instructions. the space ---------------- provided, ------------------------------------------------------------------------------------------------------------------------ give the NATURE OF AUTHORSHIP Briefly describe nature of material created by this author in which copyright is claimed. employer (or other person for whom the war was prepared) as "Author" of that part and leave the space for dates of birth and death blank. ==================================================================================================================================== 3 a YEAR IN WHICH CREATION OF THIS b DATE AND NATION OF FIRST PUBLICATION OF THIS PARTICULAR WORK WORK WAS COMPLETED This information Complete this information Month Day Year 1998 Year must be given ONLY if this work ----------- -------- ------------ in all cases. has been published. Nation --------------------------------------------- ==================================================================================================================================== 4 COPYRIGHT CLAIMANT(S) Name and address must be given even if APPLICATION RECIEVED the claimant is the same as the author given in space 2. Aug 21 2002 PETROCON ENGINEERING, INC. ONE DEPOSIT RECEIVED See P.O. BOX 20397 Aug 21 2002 instruct- BEAUMONT, TX 77720 ions before ----------------------------------------------------------------- TWO DEPOSIT RECEIVED completing TRANSFER If the claimant(s) named here in space 4 is (are) this space. different from the author(s) named in space 2, give a brief statement of how the claimant(s) obtained ownership of the FUND RECEIVED copyright. DO NOT WRITE HERE OFFICE USE ONLY ==================================================================================================================================== MORE ON BACK . Complete all applicable spaces (numbers 5-9) on the reverse side of this page. DO NOT WRITE HERE

==================================================== EXAMINED BY FORM TX /s/ Illegible ---------------------------------------------------- CHECKED BY ======================================= FOR CORRESPONDENCE COPYRIGHT OFFICE [X] USE Yes ONLY ==================================================== DO NOT WRITE ABOVE THIS LINE. IF YOU NEED MORE SPACE, USE A SEPARATE CONTINUATION SHEET. ==================================================================================================================================== PREVIOUS REGISTRATION Has registration for this work, or for an earlier version of this work, already been made in the 5 Copyright Office? [ ] Yes [X] No If your answer is "Yes," why is another registration being sought? (Check appropriate box). a. [ ] This is the first published edition of a work previously registrated in unpublished form. b. [ ] This is the first application submitted by this author as copyright claimant. c. [ ] This is the changed version of the work, as shown by space 6 on this application. If your answer is "Yes," give: Previous Registration number Year of Registration ==================================================================================================================================== DERIVATIVE WORK OR COMPILATION 6 Preexisting Material Indentify any preexisting work or works that this work is based on or incorporates. a FOXPRO See ======================================================================================================================= instructions Material Added to This Work Give a brief, general statement of the material that has been added to this work and in before which copyright is claimed. completing this space. b ==================================================================================================================================== DEPOSIT ACCOUNT If the registration fee is to be charged to a Deposit Account established in the Copyright Office, 7 give name and number of Account. Name Account Number a - ----------------------------------------------------------- ---------------------------------------------------------- ======================================================================================================================= CORRESPONDENCE Give name and address to which correspondence about this application should be sent. Name/Address/Apt/ City/State/ZIP b OLAN B. WEEKS, P.E. P.O. BOX 20397 BEAUMONT, TX 77720 Area code and daytime telephone number Fax number Email ==================================================================================================================================== CERTIFICATION* I, the undersigned, hereby certify that I am the [ ] author 8 [ ] other copyright claimant Check only one [ ] owner of exclusive right(s) [X] authorized agent of PETROCON ENGINEERING, INC. -------------------------- Name of author or other copyright claimant, or owner of exclusive right(s) - ----------------------------------------------------------------------------------------------------------------------- Typed or printed name and date If this application gives a date of publication in space 3, do not sign and submit it before that date. OLAN B. WEEKS Date 07/25/2002 - ----------------------------------------------------------------------------------------------------------------------- Handwritten signature (X) X /s/ Olan B. Weeks ------------------------- ==================================================================================================================================== YOU MUST: 9 ------------------------------------------------------------------- . Complete all necessary spaces Certificate Name . Sign your application in space 8 will be OLAN B. WEEKS mailed in ------------------------------------------------------------------- SEND ALL 3 ELEMENTS window Number/Street/Apt IN THE SAME PACKAGE: envelope P.O. BOX 20397 1. Application form to this ------------------------------------------------------------------- 2. Nonrefundable filing fee in check As of address: City/State/ZIP or money order payable to July 1, BEAUMONT, TX 77720 Register of Copyrights 1999, the ------------------------------------------------------------------- 3. Deposit material filing fee MAIL TO: for Form TX Library of Congress is $30. Copyright Office 101 Independence Avenue.S.E. Washington, D.C. 20559-6000 ______________ Any person who knowingly makes a false representation of a material fact in the application for copyright registration provided for by section 409, or in any written statement filed in connection _________________________________________