1 EXHIBIT 4.4 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this "Agreement") is made and entered into as of November 30, 1998, between Venus Exploration, Inc., a Delaware corporation (the "Company"), and Stratum Group, L.P., a Delaware limited partnership ("Stratum"). This Agreement is made pursuant to that certain settlement agreement dated as of November 12, 1998, between the Company and an affiliate of Stratum; i.e., Stratum Group Energy Partners, L.P. (the "Settlement Agreement"). The Company and Stratum hereby agree as follows: 1. Definitions As used in this Agreement, the following terms shall have the following meanings: "Advice" shall have meaning set forth in Section 3(n). "Affiliate" means, with respect to any Person, any other Person that directly or indirectly controls or is controlled by or under common control with such Person. For the purposes of this definition, "control," when used with respect to any Person, means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of voting securities, by contract or otherwise; and the terms "affiliated," "controlling" and "controlled" have meanings correlative to the foregoing. "Blackout Period" shall have the meaning set forth in Section 3(n). "Business Day" means any day except Saturday, Sunday and any day that shall be a legal holiday or a day on which banking institutions in the state of New York generally are authorized or required by law or other government actions to be closed. "Closing Date" shall mean the date of this Agreement. "Commission" means the Securities and Exchange Commission. "Common Shares" shall mean the One Million One Hundred Thousand (1,100,000) shares of Common Stock issued to Stratum under the Settlement Agreement. "Common Stock" means the Company's common stock, par value $.01 per share. "Effectiveness Period" shall have the meaning set forth in Section 2. "Exchange Act" means the Securities Exchange Act of 1934, as amended. "Filing Date" means the 90th day following the Closing Date. 2 "Holder" or "Holders" means the holder or holders, as the case may be, from time to time of Registrable Securities, excluding the Company. "Indemnified Party" shall have the meaning set forth in Section 5(c). "Indemnifying Party" shall have the meaning set forth in Section 5(c). "Losses" shall have the meaning set forth in Section 5(a). "Person" means an individual or a corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or political subdivision thereof) or other entity of any kind. "Proceeding" means an action, claim, suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a deposition), whether commenced or threatened. "Prospectus" means the prospectus included in the Registration Statement (including, without limitation, a prospectus that includes any information previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A promulgated under the Securities Act), as amended or supplemented by any prospectus supplement, with respect to the terms of the offering of any portion of the Registrable Securities covered by the Registration Statement, and all other amendments and supplements to the Prospectus, including post-effective amendments, and all material incorporated by reference or deemed to be incorporated by reference in such Prospectus. "Registrable Securities" means the Common Shares and any shares of Common Stock issued as adjustment for the stock splits and stock dividends or similar events. "Registration Statement" means the registration statement and any additional registration statements contemplated by Section 2(a), including (in each case) the Prospectus, amendments and supplements to such registration statement or Prospectus, including pre- and post-effective amendments, all exhibits thereto, and all material incorporated by reference or deemed to be incorporated by reference in such registration statement. "Rule 144" means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule. -2- 3 "Rule 158" means Rule 158 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule. "Rule 415" means Rule 415 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule. "Securities Act" means the Securities Act of 1933, as amended. "Special Counsel" means one special counsel to the Holders (initially __________________________). "Underwritten Registration or Underwritten Offering" means a registration in connection with which securities of the Company are sold to an underwriter for reoffering to the public pursuant to an effective registration statement. 2. Shelf Registration On or prior to the Filing Date, the Company shall prepare and file with the Commission a "Shelf" Registration Statement covering all Registrable Securities for an offering to be made on a continuous basis pursuant to Rule 415. The Registration Statement shall be on Form S-3 (if the Company is not then eligible to register for resale the Registrable Securities on Form S-3, such registration shall be on another appropriate form in accordance herewith). The Registration Statement shall state, to the extent permitted by Rule 416 under the Securities Act, that it also covers such indeterminate number of shares of Common Stock as may be required in each case to prevent dilution resulting from stock splits, stock dividends or similar events. The Company shall use its reasonable best efforts to cause the Registration Statement to be declared effective under the Securities Act and shall use its reasonable best efforts to keep such Registration Statement continuously effective under the Securities Act until the date which is two years after the date that such Registration Statement is declared effective by the Commission or such earlier date when all Registrable Securities covered by such Registration Statement have been sold or may be sold without volume restrictions pursuant to Rule 144(k) as determined by the counsel to the Company pursuant to a written opinion letter to such effect, addressed and acceptable to the Company's transfer agent (the "Effectiveness Period"). 3. Registration Procedures In connection with the Company's registration obligations hereunder, the Company shall: -3- 4 (a) Not less than five (5) Business Days prior to the filing of the Registration Statement described in Section 2 or any related Prospectus or any amendment or supplement thereto (including any document that would be incorporated or deemed to be incorporated therein by reference), the Company shall, (i) furnish to the Holders and their Special Counsel, copies of all such documents proposed to be filed, which documents (other than those incorporated or deemed to be incorporated by reference) will be subject to the review of such Holders and their Special Counsel, and (ii) cause its officers and directors, counsel and independent certified public accountants to respond to such inquiries as shall be necessary, in the reasonable opinion of respective counsel to such Holders, to conduct a reasonable investigation within the meaning of the Securities Act. The Company shall not file the Registration Statement or any such Prospectus or any amendments or supplements thereto to which the Holders of a majority of the Registrable Securities and their Special Counsel shall reasonably object on a timely basis. (b) (i) Prepare and file with the Commission such amendments, including post-effective amendments, to the Registration Statement as may be necessary to keep the Registration Statement continuously effective as to the applicable Registrable Securities for the Effectiveness Period; (ii) cause the related Prospectus to be amended or supplemented by any required Prospectus supplement, and as so supplemented or amended to be filed pursuant to Rule 424 (or any similar provisions then in force) promulgated under the Securities Act; (iii) respond as promptly as reasonably possible to any comments received from the Commission with respect to the Registration Statement or any amendment thereto and as promptly as reasonably possible provide the Special Counsel true and complete copies of all correspondence from and to the Commission relating to the Registration Statement; and (iv) comply in all material respects with the provisions of the Securities Act and the Exchange Act with respect to the disposition of all Registrable Securities covered by the Registration Statement during the applicable period in accordance with the intended methods of disposition by the Holders thereof set forth in the Registration Statement as so amended or in such Prospectus as so supplemented. (c) Notify the Special Counsel as promptly as reasonably possible (and, in the case of (i)(A) below, not less than five (5) days prior to such filing) and (if requested by any such Person) confirm such notice in writing no later than one (1) Business Day following the day (i)(A) when a Prospectus or any Prospectus supplement or post-effective amendment to the Registration Statement is proposed to be filed; (B) when the Commission notifies the Company whether there will be a "review" of such Registration Statement and whenever the Commission comments in writing on such Registration Statement (the Company shall provide true and complete copies thereof and all written responses thereto to the Special Counsel); and (C) with respect to the Registration Statement or any post-effective amendment, when the same has become effective; (ii) of any request by the Commission or any other Federal or state governmental authority for amendments or supplements to the Registration Statement or Prospectus or for additional information; (iii) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement covering any or all of the Registrable Securities or the initiation of any Proceedings for that purpose; (iv) of the receipt by the Company of any notification with respect to the suspension -4- 5 of the qualification or exemption from qualification of any of the Registrable Securities for sale in any jurisdiction, or the initiation or threatening of any Proceeding for such purpose; and (v) of the occurrence of any event that makes any statement made in the Registration Statement or Prospectus or any document incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires any revisions to the Registration Statement, Prospectus or other documents so that, in the case of the Registration Statement or the Prospectus, as the case may be, it will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. (d) Use its reasonable best efforts to avoid the issuance of, or, if issued, obtain the withdrawal of, (i) any order suspending the effectiveness of the Registration Statement, or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction. (e) Make all required filings of such Prospectus supplement or such post-effective amendment as soon as practicable after the Company has received notification of the matters to be incorporated in such Prospectus supplement or post-effective amendment; provided, however, that the Company shall not be required to take any action pursuant to this Section 3(e) that would, in the opinion of counsel for the Company, violate applicable law or be materially detrimental to the business prospects of the Company. (f) Furnish to the Special Counsel, without charge, at least one conformed copy of each Registration Statement and each amendment thereto, including financial statements and schedules, all documents incorporated or deemed to be incorporated therein by reference, and all exhibits to the extent requested by such Person (including those previously furnished or incorporated by reference) promptly after the filing of such documents with the Commission. (g) Promptly deliver to each Holder and their Special Counsel, without charge, as many copies of the Prospectus or Prospectuses (including each form of prospectus) and each amendment or supplement thereto as such Persons may reasonably request; and the Company hereby consents to the use of such Prospectus and each amendment or supplement thereto by each of the selling Holders and any underwriters in connection with the offering and sale of the Registrable Securities covered by such Prospectus and any amendment or supplement thereto. (h) Prior to any public offering of Registrable Securities, use its reasonable best efforts to register or qualify or cooperate with the selling Holders and their Special Counsel in connection with the registration or qualification (or exemption from such registration or qualification) of such Registrable Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions within the United States as any Holder requests in writing, to keep each such registration or qualification (or exemption therefrom) effective during the Effectiveness Period and to do any and all other acts or things necessary or advisable to enable the disposition in such -5- 6 jurisdictions of the Registrable Securities covered by a Registration Statement; provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it is not then so qualified or to take any action that would subject it to general service of process in any such jurisdiction where it is not then so subject or subject the Company to any material tax in any such jurisdiction where it is not then so subject. (i) Cooperate with the Holders to facilitate the timely preparation and delivery of certificates representing Registrable Securities to be delivered to a transferee pursuant to a Registration Statement, which certificates shall be free, to the extent permitted by applicable law, of all restrictive legends, and to enable such Registrable Securities to be in such denominations and registered in such names as any such Holders may request at least two Business Days prior to any sale of Registrable Securities. (j) Upon the occurrence of any event contemplated by Section 3(c)(v), as promptly as reasonably possible, prepare a supplement or amendment, including a post-effective amendment, to the Registration Statement or a supplement to the related Prospectus or any document incorporated or deemed to be incorporated therein by reference, and file any other required document so that, as thereafter delivered, neither the Registration Statement nor such Prospectus will contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. (k) Use its reasonable best efforts to cause all Registrable Securities relating to such Registration Statement to be listed on the Nasdaq SmallCap Market ("NASDAQ") and any other Subsequent Market, if any, on which similar securities issued by the Company are then listed. (l) Make available for inspection by the selling Holders and any representative of such Holders, and any attorney or accountant retained by such selling Holders, at the offices where normally kept, during reasonable business hours, all financial and other records, pertinent corporate documents of the Company and its subsidiaries, and cause the officers, directors, agents and employees of the Company and its subsidiaries to supply all information in each case reasonably requested by any such Holder, representative, attorney or accountant in connection with the Registration Statement; provided, however, that any information that is determined in good faith by the Company in writing to be of a confidential nature at the time of delivery of such information shall be kept confidential by such Persons, unless (i) disclosure of such information is required by court or administrative order or is necessary to respond to inquiries of regulatory authorities; (ii) such information becomes generally available to the public other than as a result of a disclosure or failure to safeguard by such Person; or (iii) such information becomes available to such Person from a source other than the Company and such source is not known by such Person to be bound by a confidentiality agreement with the Company. (m) Comply with all applicable rules and regulations of the Commission. -6- 7 (n) The Company may require each selling Holder to furnish to the Company such information regarding the distribution of such Registrable Securities and the beneficial ownership of Common Stock held by such Holder as is required by law to be disclosed in the Registration Statement, and the Company may exclude from such registration, without any penalty otherwise provided by this Agreement, the Registrable Securities of any such Holder who unreasonably fails to furnish such information within a reasonable time after receiving such request. Each Holder covenants and agrees that (i) it will not sell any Registrable Securities under the Registration Statement until it has received copies of the Prospectus as then amended or supplemented as contemplated in Section 3(g) and notice from the Company that such Registration Statement and any post-effective amendments thereto have become effective as contemplated by Section 3(c) and (ii) it and its officers, directors or Affiliates, if any, will comply with the prospectus delivery requirements of the Securities Act as applicable to it in connection with sales of Registrable Securities pursuant to the Registration Statement. Each Holder agrees by its acquisition of such Registrable Securities that, upon receipt of a notice from the Company of the occurrence of any event of the kind described in Section 3(c)(ii), 3(c)(iii), 3(c)(iv) or 3(c)(v), such Holder will forthwith discontinue disposition of such Registrable Securities under the Registration Statement until such Holder's receipt of the copies of the supplemented Prospectus and/or amended Registration Statement contemplated by Section 3(j), or until it is advised in writing (the "Advice") by the Company that the use of the applicable Prospectus may be resumed, and, in either case, has received copies of any additional or supplemental filings that are incorporated or deemed to be incorporated by reference in such Prospectus or Registration Statement. If there is a significant business opportunity (including but not limited to the acquisition or disposition of assets (other than in the ordinary course of business) or any merger, consolidation, tender offer or other similar transaction) available to the Company or other material development in respect of the Company that the Board reasonably determines not to be in the Company's best interest to disclose, then the Company may suspend the right of the Holders to sell Registrable Securities under a Registration Statement for a period not to exceed 45 Business Days during the Effectiveness Period (the "Blackout Period"); provided, however, that the suspension shall only be enforced for the same period and under the same conditions as imposed upon directors of the Company and its significant stockholders; i.e., greater than 10% stockholders. 4. Registration Expenses (a) All fees and expenses incident to the performance of or compliance with this Agreement by the Company (but not the Holders), except as and to the extent specified in Section 4(b), shall be borne by the Company. The fees and expenses referred to in the foregoing sentence shall include, without limitation, (i) all registration and filing fees (including, without limitation, fees and expenses (A) with respect to filings required to be made with the NASDAQ and any Subsequent -7- 8 Market on which the Common Stock is then listed for trading, and (B) in compliance with state securities or Blue Sky laws (including, without limitation, fees and disbursements of its counsel in connection with Blue Sky qualifications or exemptions of the Registrable Securities), (ii) printing expenses (including, without limitation, expenses of printing certificates for Registrable Securities), (iii) messenger, telephone and delivery expenses of the Company, (iv) Securities Act liability insurance, if the Company so desires such insurance, and (v) fees and expenses of all other Persons retained by the Company in connection with the consummation of the transactions contemplated by this Agreement. In addition, the Company shall be responsible for all of its internal expenses incurred in connection with the consummation of the transactions contemplated by this Agreement (including, without limitation, all salaries and expenses of its officers and employees performing legal or accounting duties), the expense of any annual audit, the fees and expenses incurred in connection with the listing of the Registrable Securities on any securities exchange as required hereunder. (b) The Holders shall be responsible for all their costs, fees and expenses in connection therewith (including registration fees, transfer taxes and any commissions and discounts) and their legal counsel and accountants. 5. Indemnification (a) Indemnification by the Company. The Company shall, notwithstanding any termination of this Agreement, indemnify and hold harmless each Holder, the officers, directors, agents (including any underwriters retained by such Holder in connection with the offer and sale of Registrable Securities), brokers (including brokers who offer and sell Registrable Securities as principal as a result of a pledge or any failure to perform under a margin call of Common Stock), investment advisors and employees of each of them, each Person who controls any such Holder (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers, directors, agents and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including, without limitation, costs of preparation and reasonable attorneys' fees) and expenses (collectively, "Losses"), as incurred, arising out of or relating to any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any Prospectus or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading, except to the extent, but only to the extent, that such untrue statements or omissions are based solely upon information regarding such Holder furnished in writing to the Company by such Holder expressly for use therein, or to the extent that such information relates to such Holder or such Holder's proposed method of distribution of Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in the Registration Statement, such Prospectus or such form of Prospectus or in any amendment or supplement thereto. The Company shall notify -8- 9 the Holders promptly of the institution, threat or assertion of any Proceeding of which the Company is aware in connection with the transactions contemplated by this Agreement. (b) Indemnification by Holders. Each Holder shall, severally and not jointly, indemnify and hold harmless the Company, its directors, officers, agents and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), and the directors, officers, agents or employees of such controlling Persons, to the fullest extent permitted by applicable law, from and against all Losses (as determined by a court of competent jurisdiction in a final judgment not subject to appeal or review) arising solely out of or based solely upon any untrue statement of a material fact contained in the Registration Statement, any Prospectus, or any form of prospectus, or in any amendment or supplement thereto, or arising solely out of or based solely upon any omission of a material fact required to be stated therein or necessary to make the statements therein not misleading to the extent, but only to the extent, that such untrue statement or omission is contained in any information so furnished in writing by such Holder to the Company specifically for inclusion in the Registration Statement, such Prospectus or such form of prospectus or to the extent that such information relates to such Holder or such Holder's proposed method of distribution of Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in the Registration Statement, such Prospectus or such form of Prospectus, or in any amendment or supplement thereto. In no event shall the liability of any selling Holder hereunder be greater in amount than the dollar amount of the net proceeds received by such Holder upon the sale of the Registrable Securities giving rise to such indemnification obligation. (c) Conduct of Indemnification Proceedings. If any Proceeding shall be brought or asserted against any Person entitled to indemnity hereunder (an "Indemnified Party"), such Indemnified Party shall promptly notify the Person from whom indemnity is sought (the "Indemnifying Party") in writing, and the Indemnifying Party shall assume the defense thereof, including the employment of counsel reasonably satisfactory to the Indemnified Party and the payment of all fees and expenses incurred in connection with defense thereof; provided, that the failure of any Indemnified Party to give such notice shall not relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except (and only) to the extent that it shall be finally determined by a court of competent jurisdiction (which determination is not subject to appeal or further review) that such failure shall have proximately and materially adversely prejudiced the Indemnifying Party. An Indemnified Party shall have the right to employ separate counsel in any such Proceeding and to participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such Indemnified Party or Parties unless: (1) the Indemnifying Party has agreed in writing to pay such fees and expenses; or (2) the Indemnifying Party shall have failed promptly to assume the defense of such Proceeding and to employ counsel reasonably satisfactory to such Indemnified Party in any such Proceeding; or (3) the named parties to any such Proceeding (including any impleaded parties) include both such Indemnified Party and the Indemnifying Party, -9- 10 and such Indemnified Party shall have been advised by counsel that a conflict of interest is likely to exist if the same counsel were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party notifies the Indemnifying Party in writing that it elects to employ separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall not have the right to assume the defense thereof and such counsel shall be at the expense of the Indemnifying Party; provided, however, that the Indemnifying Party shall be responsible for the fees and expenses of one counsel for all such Indemnified Parties unless an Indemnified Party shall have been advised by counsel that a conflict of interest is likely to exist if the same counsel were to represent all such Indemnified Parties, in which case such Indemnified Party shall be permitted, at the expense of the Indemnifying Party, to employ separate counsel). The Indemnifying Party shall not be liable for any settlement of any such Proceeding effected without its written consent, which consent shall not be unreasonably withheld. No Indemnifying Party shall, without the prior written consent of the Indemnified Party, effect any settlement of any pending Proceeding in respect of which any Indemnified Party is a party, unless such settlement includes an unconditional release of such Indemnified Party from all liability on claims that are the subject matter of such Proceeding. All fees and expenses of the Indemnified Party (including reasonable fees and expenses to the extent incurred in connection with investigating or preparing to defend such Proceeding in a manner not inconsistent with this Section) shall be paid to the Indemnified Party, as incurred, within ten (10) Business Days of written notice thereof to the Indemnifying Party (regardless of whether it is ultimately determined that an Indemnified Party is not entitled to indemnification hereunder; provided, that the Indemnifying Party may require such Indemnified Party to undertake to reimburse all such fees and expenses to the extent it is finally judicially determined that such Indemnified Party is not entitled to indemnification hereunder). (d) Contribution. If a claim for indemnification under Section 5(a) or 5(b) is unavailable to an Indemnified Party (by reason of public policy or otherwise), then each Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute to the amount paid or payable by such Indemnified Party as a result of such Losses, in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party and Indemnified Party in connection with the actions, statements or omissions that resulted in such Losses as well as any other relevant equitable considerations. The relative fault of such Indemnifying Party and Indemnified Party shall be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission of a material fact, has been taken or made by, or relates to information supplied by, such Indemnifying Party or Indemnified Party, and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such action, statement or omission. The amount paid or payable by a party as a result of any Losses shall be deemed to include, subject to the limitations set forth in Section 5(c), any reasonable attorneys' or other reasonable fees or expenses incurred by such party in connection with any Proceeding to the extent such party would have been indemnified for such fees or expenses if the indemnification provided for in this Section 5 was available to such party in accordance with its terms. -10- 11 The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 5(d) were determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to in the immediately preceding para graph. Notwithstanding the provisions of this Section 5(d), no Holder shall be required to contribute, in the aggregate, any amount in excess of the amount by which the proceeds actually received by such Holder from the sale of the Registrable Securities subject to the Proceeding exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No Person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any Person who was not guilty of such fraudulent misrepresentation. The indemnity and contribution agreements contained in this Section are in addition to any liability that the Indemnifying Parties may have to the Indemnified Parties. 6. Miscellaneous (a) Remedies. In the event of a breach by the Company or by a Holder of any of their obligations under this Agreement, each Holder or the Company, as the case may be, in addition to being entitled to exercise all rights granted by law and under this Agreement, including recovery of damages, will be entitled to specific performance of its rights under this Agreement. The Company and each Holder agree that monetary damages would not provide adequate compensation for any losses incurred by reason of a breach by it of any of the provisions of this Agreement and hereby further agrees that, in the event of any action for specific performance in respect of such breach, it shall waive the defense that a remedy at law would be adequate. (b) Piggy-Back Registrations. If, at any time the Company shall determine to prepare and file with the Commission a registration statement relating to an offering for its own account or the account of others under the Securities Act of any of its equity securities, other than on Form S-4 or Form S-8 (each as promulgated under the Securities Act) or their then equivalents relating to equity securities to be issued solely in connection with any acquisition of any entity or business or equity securities issuable in connection with stock option or other employee benefit plans, then the Company shall send to each holder of Registrable Securities written notice of such determination and, if within fourteen (14) days after receipt of such notice, any such holder shall so request in writing, the Company shall include in such registration statement all or any part of such Registrable Securities such holder requests to be registered; provided, however, that the Company shall not be required to register any Registrable Securities pursuant to this Section 6(b) that are eligible for sale pursuant to Rule 144(k) of the Commission. Any registration statement referred to in this Section 6(b) may be withdrawn at any time by the Company. The Holders acknowledge and agree that in connection with any such underwritten sale of their shares, the Company will be compelled to de-register such shares under any then-effective Registration Statement covering the resale of such shares. The number of Registrable Securities to be included in such a registration may be reduced or eliminated if and to the extent, in the case of an underwritten offering, the managing -11- 12 underwriter shall render to the Company its opinion that such inclusion would materially jeopardize the successful marketing of the securities (including the Registrable Securities) proposed to be sold therein; provided, however, that such number of shares of Registrable Securities shall not be reduced by a proportion greater than that enforced against all the shares included in the registration pursuant to permitted requests by directors of the Company and its significant stockholders; i.e., greater than 10% stockholders. In the event that the number of Registrable Securities to be included in a registration is to be reduced as provided above, within 10 Business Days after receipt by each Holder proposing to sell Registrable Securities pursuant to the registered offering of the opinion of such managing underwriter, all such Selling Holders may allocate among themselves the number of shares of such Registrable Securities which such opinion states may be distributed without adversely affecting the distribution of the securities covered by the Registration Statement, and if such Holders are unable to agree among themselves with respect to such allocation, such allocation shall be made in proportion to the respective numbers of shares specified in their respective written requests. Notwithstanding anything to the contrary contained in Section 3 and this Section 6(b), in the event that there is a firm underwriting commitment offer of securities of the Company pursuant to a Registration Statement covering Registrable Securities, regardless whether the Holder elects to participate in such offering, each Holder shall not offer for sale, sell, grant any option for the sale of, or otherwise dispose of, directly or indirectly, any shares of Common Stock, or any securities convertible into or exchangeable into or exercisable for any shares of Common Stock during the period of distribution of the Company's securities by such underwriters, which period shall be specified in writing by the underwriters, shall not exceed any period during which management of the Company and others are similarly prohibited from disposing of shares of Common Stock, and shall not exceed 180 days following the date of effectiveness under the Securities Act of the Registration Statement relating thereto. If Stratum and its Affiliates beneficially own less than 5% of the outstanding shares of Common Stock of the Company, the lockup period described in the immediately preceding sentence will be waived by the Company and the obligation of the Company to maintain effectiveness the Registration Statement as provided by Section 2 will terminate. No Holder may participate in any Underwritten Offering hereunder unless such Holder (i) agrees to sell its Registrable Securities on the basis provided in any underwriting agreements approved by the Persons entitled hereunder to approve such arrangements and (ii) completes and executes all questionnaires, powers of attorney, indemnities, underwriting agreements and other documents required under the terms of such arrangements. (c) Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given, unless the same shall be in writing and signed by the Company and the Holders of at least two-thirds of the then outstanding Registrable Securities; provided, however, that, for the purposes of this sentence, Registrable Securities that are owned, directly or indirectly, by the Company, or an Affiliate of the Company are not deemed outstanding. Notwithstanding the foregoing, a waiver or consent to depart from the provisions hereof with respect to a matter that relates exclusively to the rights of Holders and that does not directly or indirectly affect the rights of other Holders may be given by Holders of at least a majority -12- 13 of the Registrable Securities to which such waiver or consent relates; provided, however, that the provisions of this sentence may not be amended, modified, or supplemented except in accordance with the provisions of the immediately preceding sentence. (d) Notices. Any notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must be in writing and will be deemed to have been delivered (i) upon receipt, when delivered personally; (ii) the date of transmission, if such notice or communication is delivered via facsimile at the facsimile telephone number specified in this Section prior to 5:00 p.m. (Central time) on a Business Day, (iii) the Business Day after the date of transmission, if such notice or communication is delivered via facsimile at the facsimile telephone number specified in this Section later than 5:00 p.m. (Central time) on any date and earlier than 11:59 p.m. (Central time) on such date; or (iv) upon receipt, when delivered by a reputable overnight delivery service, in each case properly addressed to the party to receive the same. The addresses and facsimile numbers for such communications shall be: If to the Company: Venus Exploration, Inc. 1250 N.E. Loop 410 Suite 1000 San Antonio, Texas 78209 Facsimile: (210) 828-6016 Attention: John Y. Ames With copies to: Haynes and Boone, LLP 112 E. Pecan Street Suite 1600 San Antonio, Texas 78205 Facsimile: (210) 978-7450 Attention: Will C. Jones, IV If to Stratum, to its address and facsimile number on the Schedule of Stratum, with copies to Stratum's representatives as set forth on the Schedule of Stratum attached to the Settlement Agreement. Each party shall provide five days' prior written notice to the other party of any change in address or facsimile number. If to any other Person who is then the registered Holder: To the address of such Holder as it appears in the stock transfer books of the Company or such other address as may be designated in writing hereafter, in the same manner, by such Person. -13- 14 (e) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the successors and permitted assigns of each of the parties and shall inure to the benefit of each Holder. Each Holder may assign their respective rights hereunder in the manner and to the Persons as permitted under this Agreement and the Settlement Agreement and in accordance with the Securities Act. (f) Assignment of Registration Rights. The rights of each Holder hereunder, including the right to have the Company register for resale Registrable Securities in accordance with the terms of this Agreement, shall be automatically assignable by each Holder to any Affiliate of such Holder, any other Holder or Affiliate of any other Holder if: (i) the Holder agrees in writing with the transferee or assignee to assign such rights, and a copy of such agreement is furnished to the Company within a reasonable time after such assignment, (ii) the Company is, within a reasonable time after such transfer or assignment, furnished with written notice of (a) the name and address of such transferee or assignee, and (b) the securities with respect to which such registration rights are being transferred or assigned, (iii) following such transfer or assignment the further disposition of such securities by the transferee or assignees is restricted under the Securities Act and applicable state securities laws, (iv) at or before the time the Company receives the written notice contemplated by clause (ii) of this Section, the transferee or assignee agrees in writing with the Company to be bound by all of the provisions of this Agreement, and (v) such transfer shall have been made in accordance with the applicable requirements of the Settlement Agreement. The rights to assignment shall apply to the Holders (and to subsequent) successors and assigns. (g) Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original and, all of which taken together shall constitute one and the same Agreement. In the event that any signature is delivered by facsimile transmission, such signature shall create a valid binding obligation of the party executing (or on whose behalf such signature is executed) the same with the same force and effect as if such facsimile signature were the original thereof. (h) Governing Law. This Agreement shall be governed by and construed and enforced in accordance with the internal laws of the State of Texas without regard to the principles of conflicts of law thereof. (i) Cumulative Remedies. The remedies provided herein are cumulative and not exclusive of any remedies provided by law. (j) Severability. If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated, and the parties hereto shall use their reasonable efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated by such term, provision, covenant or restriction. It is hereby stipulated and declared to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be hereafter declared invalid, illegal, void or unenforceable. (k) Headings. The headings in this Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof. (l) Shares Held by The Company and its Affiliates. Whenever the consent or approval of Holders of a specified percentage of Registrable Securities is required hereunder, Registrable Securities held by the Company or its Affiliates (other than any Holder or transferees or successors or assigns thereof if such Holder is deemed to be an Affiliate solely by reason of its holdings of such Registrable Securities) shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage. -14- 15 IN WITNESS WHEREOF, the parties have executed this Registration Rights Agreement as of the date first written above. VENUS EXPLORATION, INC. By: /s/ JOHN AMES ----------------------------------------- Name: John Ames Its: President STRATUM GROUP, L.P. By: Stratum Corp., its general partner By: /s/ J.M. RINALDI ----------------------------------------- Name: Joseph M. Rinaldi Title: President and Chief Executive Officer -15-