Philippine National Oil Company vs. Keppel Philippines Holdings, Inc.

An option to purchase unsupported by a consideration distinct from the purchase price does not create a binding option contract but remains a revocable offer; once that offer is accepted by the offeree before the offeror withdraws it, a bilateral contract to sell is perfected and the parties’ obligations become reciprocally demandable. The en banc ruling in Sanchez v. Rigos, which harmonised Articles 1324 and 1479 of the Civil Code, is the prevailing doctrine; Southwestern Sugar v. AGPC is expressly abandoned.

Keppel Philippines Holdings, Inc., then majority foreign-owned, leased 11 hectares of land in Bauan, Batangas from Luzon Stevedoring Corporation (Lusteveco) for 25 years beginning in August 1976. The agreement granted Keppel a “firm and absolute option to purchase” the land for ₱4.09 million at the end of the lease, provided it had become qualified to own land under Philippine law. If Keppel remained unqualified, the lease automatically renewed for another 25 years and the option could be exercised up to the 30th year for a nominal ₱100. Lusteveco also bound itself not to sell or assign the land without Keppel’s prior written consent. Philippine National Oil Company (PNOC) later acquired the land and assumed the lessor’s obligations, and the agreement was annotated on its certificate of title.

• The 1976 Lease and Option Agreement: On 6 August 1976, Keppel (then less than 60% Filipino-owned) leased 11 hectares in Bauan, Batangas from Lusteveco for 25 years at a rental of ₱2.1 million, convertible into Keppel equity. Paragraph 5 granted Keppel a “firm and absolute option to purchase” the land for ₱4.09 million at the end of 25 years, discounted at 16% annually for earlier exercise, conditioned on Keppel’s qualification to own land under Philippine law. If still unqualified in 2001, the lease automatically renewed for another 25 years at the same rental, and the option could be exercised until the 30th year for a nominal ₱100, again subject to nationality qualification. Paragraph 6 stipulated that Lusteveco would not sell or assign its rights without Keppel’s prior written consent.

• Transfer to PNOC: PNOC acquired the land from Lusteveco and assumed the lessor’s rights. Keppel consented, and the agreement was annotated as Entry No. 65340 on PNOC’s Transfer Certificate of Title No. T-50724.

• Keppel’s Investment: Keppel spent ₱60 million on preliminary site preparation and ₱177 million on improvements to operate a shipbuilding and ship repair business on the land.

• Nationality Qualification and Demand: In December 2000, Keppel notified PNOC that at least 60% of its shares were Filipino-owned, thereby meeting the constitutional threshold. Keppel repeatedly demanded to exercise the option, but PNOC did not comply.

• Proceedings: Keppel sued for specific performance in 2003. PNOC defended that the agreement was an unconstitutional virtual sale to an alien, the option lacked separate consideration, and PNOC was not privy to the agreement. Both the RTC and the CA ruled in Keppel’s favour.

• Unconstitutional Virtual Sale: PNOC contended that the provisions—a 25-year automatically renewable lease, the option to purchase for a nominal ₱100 after 25 years, and the prohibition on Lusteveco’s disposition without Keppel’s consent—collectively amounted to a virtual transfer of ownership to a foreign corporation, violating the 1973 Constitution and paralleling Philippine Banking Corporation v. Lui She.

• Void Option for Lack of Separate Consideration: PNOC argued that the option was a distinct contract under Article 1479 of the Civil Code and was void because it lacked a consideration separate from the purchase price; the rental fees paid under the lease could not serve as the required distinct consideration.

• No Virtual Sale: Keppel maintained that the agreement did not circumvent the Constitution because the option was conditioned on Keppel first becoming qualified to own land, a condition fulfilled in 2000 when Filipino equity reached 60%. Lusteveco was not completely deprived of disposition rights; it transferred the land to PNOC with Keppel’s consent.

• Option Supported by Reciprocal Contract Consideration: Keppel relied on Vda. de Quirino v. Palarca, asserting that because the option was a stipulation in a reciprocal lease contract, it was supported by the same consideration as the lease itself, and no independent separate consideration was necessary.

• Constitutionality: Whether the lease agreement’s terms—specially the option to purchase and the restriction on sale without consent—operated as a virtual sale of land to an alien, in violation of the constitutional prohibition on foreign ownership of private lands.

• Validity of the Option: Whether the option to purchase was valid and binding under Article 1479 of the Civil Code despite the absence of a separately stated consideration distinct from the purchase price.

• Gamboa Compliance: Whether Keppel’s equity ownership satisfied the 60% Filipino capital requirement as interpreted in Gamboa v. Teves — i.e., 60% Filipino ownership of each class of shares — to permit full acquisition of title to the land.

• Constitutionality: The agreement did not violate the constitutional ban on alien land ownership. Unlike in Lui She, where a 99-year lease with an absolute prohibition on sale and an option to buy constituted a virtual transfer, the present case involved an industrial undertaking requiring enormous investments (₱60 million and ₱177 million). The restriction on Lusteveco’s disposition rights was not absolute; Lusteveco could transfer the land with Keppel’s written consent—a right it exercised when it conveyed the property to PNOC. The arrangement was a legitimate means of protecting Keppel’s substantial investment, not a scheme to completely divest the Filipino owner of all ownership attributes.

• Validity of the Option: The option lacked a valid separate consideration and thus did not constitute a perfected option contract. Neither paragraph 5 nor any evidence showed that the parties intended Lusteveco’s right to convert the purchase price into equity as the distinct consideration for the option. Vda. de Quirino v. Palarca was clarified: the option there was in fact supported by additional concessions (higher rent and a reciprocal option on improvements), not merely by the reciprocal nature of the lease. Consequently, the option as an option contract was invalid.

However, an option unsupported by distinct consideration does not become a nullity. Under the controlling en banc doctrine of Sanchez v. Rigos, which reconciled Articles 1324 and 1479 of the Civil Code and expressly overturned Southwestern Sugar v. AGPC, such an option remains a revocable offer to sell. Once the offeree communicates acceptance before the offeror withdraws the offer, a bilateral contract to sell is perfected, and the obligations become reciprocally demandable. Keppel accepted the offer in 2000 after meeting the nationality condition; PNOC never issued a categorical withdrawal of the offer before that acceptance, having merely sought the OGCC’s opinion and later disputed only the purchase price. Hence, a binding contract to sell was created, and Keppel could demand specific performance.

• Gamboa Compliance: Gamboa v. Teves interpreted the 60% Filipino ownership requirement for public utilities—and by parity of reasoning for land ownership—as requiring that the legal and beneficial ownership of 60% of each class of shares be held by Filipino nationals. Keppel had shown that 60% of its total shares were Filipino-owned in 2000, but there was no evidence on how its shareholdings were structured by class. Since the Gamboa ruling was promulgated after Keppel exercised the option, it could not be applied retroactively to nullify Keppel’s vested right. However, the 60% Filipino equity proportion is a continuing requirement for holding land. The case was remanded to allow Keppel to prove compliance with the Gamboa per-class standard before full title could be transferred.

• Virtual Transfer of Land to Aliens — A lease coupled with an option to purchase and restrictions on the lessor’s power to dispose may be struck down as a prohibited virtual transfer if the aggregate terms effectively strip the lessor of all ownership rights (jus possidendi, utendi, fruendi, abutendi, and disponendi). However, where the lessor retains a qualified power to transfer (e.g., with the lessee’s written consent) and the lessee has made massive industrial investments, the arrangement does not necessarily amount to an unconstitutional circumvention.

• Separate Consideration for Option Contracts — Under Article 1479, Civil Code, an accepted unilateral promise to buy or sell a determinate thing for a price certain is binding only if supported by a consideration distinct from the price. The consideration must be clearly specified as such in the option clause or proved by the offeree; mere incorporation of the option in a reciprocal contract like a lease does not automatically supply the required distinct consideration. The ruling in Vda. de Quirino v. Palarca is limited to its facts, where additional concessions (higher rent, reciprocal option on improvements) existed.

• Sanchez v. Rigos Doctrine (Unaccepted Offer Ripening into a Contract to Sell) — An option to buy or sell unsupported by a separate consideration is not a binding option contract but a revocable offer under Article 1324. If the offer is timely accepted before withdrawal, a bilateral contract to sell is perfected under the first paragraph of Article 1479, and the parties’ respective obligations become reciprocally demandable. This en banc ruling prevails over the abandoned Southwestern Sugar v. AGPC doctrine, which had treated such an option as unenforceable even after acceptance.

• Prospective Application of Gamboa v. Teves — The rule requiring proof that 60% of each class of shares is legally and beneficially owned by Filipino nationals applies prospectively. A corporation that acquired a vested right to purchase land before the ruling will not be retroactively deprived of that right; however, before full title may be issued, the corporation must adduce evidence of compliance with the Gamboa per-class standard.

• “An option unsupported by a separate consideration stands as an unaccepted offer to buy (or to sell) which, when properly accepted, ripens into a contract to sell.”

• “When the offer is duly accepted, a mutual promise to buy and to sell under the first paragraph of Article 1479 of the Civil Code ensues and the parties’ respective obligations become reciprocally demandable.”

• “For uniformity and consistency in contract interpretation, the better rule to follow is that the consideration for the option contract should be clearly specified as such in the option contract or clause. Otherwise, the offeree must bear the burden of proving that a separate consideration for the option contract exists.”

• Sanchez v. Rigos, 150-A Phil. 714 (1972) — Reaffirmed as the controlling en banc doctrine: an option unsupported by distinct consideration is a revocable offer; if accepted before withdrawal, a bilateral contract to sell arises.
• Southwestern Sugar v. AGPC, 97 Phil. 249 (1955) — Expressly abandoned; had held that an accepted unilateral promise without distinct consideration is not binding.
• Philippine Banking Corporation v. Lui She, 128 Phil. 53 (1967) — Distinguished; a 99-year lease with absolute prohibition on sale and an option to buy was a virtual transfer; here the lessor retained a qualified power to transfer.
• Gamboa v. Teves, 696 Phil. 276 (2012) — Applied prospectively; interpreted “capital” to require 60% Filipino ownership per class of shares for public utilities and, by extension, for land ownership.
• Vda. de Quirino v. Palarca, 139 Phil. 488 (1969) — Clarified; the option therein was in fact supported by additional concessions, not merely by the reciprocal lease.
• Bible Baptist Church v. CA, 486 Phil. 625 (2004) — Applied the rule that the consideration must be clearly specified in the option clause.

• Article 1324, Civil Code — An offer with a period may be withdrawn at any time before acceptance unless the option is founded upon a consideration. Applied to treat the unsupported option as a revocable offer.
• Article 1479, Civil Code — First paragraph: a promise to buy and sell a determinate thing for a price certain is reciprocally demandable; second paragraph: an accepted unilateral promise to buy or sell is binding only if supported by a consideration distinct from the price. The first paragraph governed once Keppel’s acceptance perfected a bilateral contract.
• Article 1354, Civil Code — Presumption of consideration does not apply where Article 1479 expressly requires a distinct consideration.
• Article XIV, Section 14, 1973 Constitution; Article XII, Sections 2, 3, and 7, 1987 Constitution — Reserved ownership of private lands to Filipino citizens and corporations at least 60% Filipino-owned; used to test the agreement’s constitutionality and Keppel’s qualification.
• Article VIII, Section 4(3), 1987 Constitution — A doctrine laid down by the Court en banc may only be modified or reversed by the Court sitting en banc; underpinned the reaffirmation of Sanchez v. Rigos over division cases.

Associate Justice Antonio T. Carpio (Chairperson), Associate Justice Mariano C. Del Castillo, Associate Justice Jose Catral Mendoza, and Associate Justice Marvic M.V.F. Leonen.

• Justice Marvic M.V.F. Leonen — A separate dissenting opinion was registered.