1 EXHIBIT 10.11 STOCK PURCHASE AGREEMENT AMONG PATINA OIL & GAS CORPORATION AND THE INVESTORS NAMED HEREIN DATED AS OF JULY 31, 1997 AND AS AMENDED AND RESTATED AS OF SEPTEMBER 19, 1997 2 TABLE OF CONTENTSStock Purchase Agreement • September 19th, 1997 • Patina Oil & Gas Corp • Crude petroleum & natural gas • Delaware
2 3 1.2. Additional Definitions. Section 1.1 of the Credit Agreement shall be amended to add the following definitions to such Section:Credit Agreement • September 19th, 1997 • Patina Oil & Gas Corp • Crude petroleum & natural gas
